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Description:

Leptin Quadruple Antagonist, Pegylated Rat Recombinant

OB Protein, Obesity Protein, OBS, Obesity factor.

Product # :

CYT-1241

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Description

Leptin Pegylated Quadruple Antagonist Rat Recombinant is a single non-glycosilated polypeptide chain containing 146 amino and additional Ala at N-terminus acids. The Rat Leptin antagonist is bound to 20 kDa mono-PEG at N-terminus, resulting in 35.6 kDa. The Rat Leptin Pegylated Quadruple Antagonist was mutated, resulting in D23L/L39A/D40A/F41A that was purified by proprietary chromatographic techniques.

Source

Escherichia coli.

Formulation

The Rat Leptin Pegylated Quadruple Antagonist was lyophilized from a concentrated (0.65mg/ml) solution with 0.003mM NaHCO3.

Purity

Greater than 98.0% as determined by:

(a) Gel filtration analysis.

(b) Analysis by SDS-PAGE.

Biological Activity

Rat Leptin Pegylated Quadruple Antagonist inhibits leptin-induced proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Its in vitro.

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Synonyms
OB Protein, Obesity Protein, OBS, Obesity factor.
Physical Appearance
White lyophilized (freeze-dried) powder.
Stability
Lyophilized Rat Leptin Pegylated Quadruple Antagonist although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1 and up to 2mM of rat pegylated leptin antagonist and filter sterilization rat pegylated leptin antagonist can be stored at 4°C or even room temperature for several weeks making it suitable for long term infusion studies using osmotic pumps. At lower concentration addition of a carrier protein (0.1% HSA or BSA) is suggested. Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized Rat Leptin Pegylated Quadruple Antagonist in sterile water or sterile 0.4% NaHCO3adjusted to pH 8-9, not less than 100µg/ml, which can then be further diluted with other aqueous solutions.
Background
Leptin is a hormone which mainly produced by adipocytes. Leptin’s main part is to regulate long-term energy balance. Leptin is encoded by the LEP gene. Leptin receptors are expressed by various brain and peripheral cell types. leptin levels influence satiety, appetite and triggers behaviors which lead to energy savings. High leptin levels are interpreted by the brain that energy reserves are high, whereas low leptin levels means that energy reserves are low, in the process adapting the organism to starvation through a variety of metabolic, neurobiochemical, endocrine and behavioral change.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Growth differentiation factor 5 Mouse Recombinant, His Tag

Bmp-14, Bp, GDF-5, Bone morphogenetic protein 14, GDF5.

Product # :

CYT-852

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Description

GDF5 Mouse Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 143 amino acids (376-495 a.a) and having a molecular mass of 16kDa.GDF5 is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

GDF5 protein solution (0.5mg/ml) containing 20mM Tris-HCl buffer (pH 8.0) and 10% glycerol.

Purity

Greater than 90.0% as determined by SDS-PAGE.

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Introduction
GDF-5 is a member of the bone morphogenetic protein (BMP) family and the TGF-beta superfamily. This group of proteins is characterized by a polybasic proteolytic processing site which is cleaved to produce a mature protein containing seven conserved cysteine residues. The members of this family are regulators of cell growth and differentiation in both embryonic and adult tissues. Mutations in this gene are associated with acromesomelic dysplasia, Hunter-Thompson type; brachydactyly, type C; and chondrodysplasia, Grebe type. These associations confirm that the gene product plays a role in skeletal development.
Synonyms
Bmp-14, Bp, GDF-5, Bone morphogenetic protein 14, GDF5.
Physical Appearance
Sterile Filtered colorless solution.
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MGSAPLANRQ GKRPSKNLKA RCSRKALHVN FKDMGWDDWI IAPLEYEAFH CEGLCEFPLR SHLEPTNHAV IQTLMNSMDP ESTPPTCCVP TRLSPISILF IDSANNVVYK QYEDMVVESC GCR.
Background
What is the molecular weight/Mw of GDF5 MOUSE Protein?
GDF5 MOUSE Protein has a total Mw of 16kDa.

What is the source or expression system of GDF5 MOUSE Protein?
Escherichia Coli.

What is the Purity of GDF5 MOUSE Protein?
GDF5 MOUSE Protein is >90% pure as determined by SDS-PAGE.

What is the Biological Activity of GDF5 MOUSE Protein?
The biological functionality of GDF5 MOUSE Protein will be determined in the future.

What is the amino acid sequence of GDF5 MOUSE Protein?
MGSSHHHHHH SSGLVPRGSH MGSAPLANRQ GKRPSKNLKA RCSRKALHVN FKDMGWDDWI IAPLEYEAFH CEGLCEFPLR SHLEPTNHAV IQTLMNSMDP ESTPPTCCVP TRLSPISILF IDSANNVVYK QYEDMVVESC GCR.

What applications can GDF5 MOUSE Protein be used in?
GDF5 MOUSE Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for GDF5 MOUSE Protein?
The endotoxin level is minimal, GDF5 MOUSE Protein was purified using conventional chromatography techniques.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

FGFR1 Oncogene Partner (1-80 a.a.) Human Recombinant

FGFR1 oncogene partner, FGFR1OP, FOP.

Product # :

PKA-138

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Description

The FGFR1O PHuman is created as a recombinant protein with a 4kda N-terminal fusion of His Tag. The FGFR1OP His-Tagged Fusion Protein, produced in E. coli, is a 12kDa protein containing 80 amino acid residues of the FGFR1OP Human, 1-80 amino acids.

Source

Escherichia Coli.

Formulation

Each mg was lyophilized with 1xPBS, 0.4% SDS and 4mM DTT.

Purity

Greater than 90% as determined by SDS-PAGE.

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Synonyms
FGFR1 oncogene partner, FGFR1OP, FOP.
Physical Appearance
Filtered White lyophilized (freeze-dried) powder.
Stability
Store lyophilized FGFR1OP at -20°C. Aliquot the product after reconstitution to avoid repeated freezing/thawing cycles. Reconstituted protein can be stored at 4°C for a limited period of time; it does not show any change after two weeks at 4°C.
Solubility
It is recommended to add deionized water to prepare a working stock solution of approximately 0.5mg/ml and let the lyophilized pellet dissolve completely. Product is not sterile! Please filter the product by an appropriate sterile filter before using it on cell culture.
Amino Acid Sequence
L MAATAAAVVA EEDTELRDLL VQTLENSGVL NRIKAELRAA VFLALEEQEK VENKTPLVNE SLRKFLNTKD GRLVASLVA
Background
FGFR1 oncogene partner also known as FGFR1OP is a leucine-rich member of the FGFR1OP family. The ensuing chimeric protein contains the N-terminal leucine-rich region of the FGFR1OP protein fused to the catalytic domain of FGFR1. The FGFR1OP plays a main role in normal proliferation and differentiation of the erythroid lineage.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Granulocyte-Colony Stimulating Factor Mouse Recombinant

CSF3, MGI-1G, GM-CSF beta, Pluripoietin, G-CSF, GCSF.

Product # :

CYT-410

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Description

Granulocyte Colony Stimulating Factor Mouse Recombinant produced in E.coli is a single, non-glycosylated, polypeptide chain containing 178 amino acids and having a molecular mass of approximately 18.9kDa. G-CSF is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

G-CSF Lyophilized from 10mM NaCitrate, pH 4.0 and 150mM NaCl.

Purity

Greater than 98.0% as determined by:
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.

Biological Activity

The ED₅₀ as determined by a cell proliferation assay using murine NFS-60 cells is < 0.05 ng/ml, corresponding to a Specific Activity of 2 x 10⁷IU/mg.

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Introduction
Granulocyte Colony Stimulating Factor is a growth factor and/or cytokine produced by the endothelium, macrophages and a number of other immune cells. GCSF stimulates the bone marrow to produce granulocytes and also to stimulate the survival, proliferation, differentiation and function of neutrophil granulocyte progenator cells and mature neutrophils.
Synonyms
CSF3, MGI-1G, GM-CSF beta, Pluripoietin, G-CSF, GCSF.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Granulocyte Colony Stimulating Factor although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution GCSF should be stored at 4°C between 2-7 days and for future use below -18°C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized Granulocyte Colony Stimulating Factor in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
VPLVTVSAL PPSLPLPRSF LLKSLEQVRK IQASGSVLLE QLCATYKLCH PEELVLLGHS LGIPKASLSG CSSQALQQTQ CLSQLHSGLC LYQGLLQALS GISPALAPTL DLLQLDVANF ATTIWQQMEN LGVAPTVQPT QSAMPAFTSA FQRRAGGVLA ISYLQGFLET ARLALHHLA.
Background
What is the molecular weight/Mw of G CSF MOUSE Protein?
G CSF MOUSE Protein has a total Mw of 18.9kDa.

What is the source or expression system of G CSF MOUSE Protein?
Escherichia Coli.

What is the Purity of G CSF MOUSE Protein?
G CSF MOUSE Protein is >98% pure as determined by SDS-PAGE.

What is the Biological Activity of G CSF MOUSE Protein?
The ED50 as determined by a cell proliferation assay using murine NFS-60 cells is < 0.05 ng/ml, corresponding to a Specific Activity of 2 x 107IU/mg.

What is the amino acid sequence of G CSF MOUSE Protein?
VPLVTVSAL PPSLPLPRSF LLKSLEQVRK IQASGSVLLE QLCATYKLCH PEELVLLGHS LGIPKASLSG CSSQALQQTQ CLSQLHSGLC LYQGLLQALS GISPALAPTL DLLQLDVANF ATTIWQQMEN LGVAPTVQPT QSAMPAFTSA FQRRAGGVLA ISYLQGFLET ARLALHHLA.

What applications can G CSF MOUSE Protein be used in?
G CSF MOUSE Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for G CSF MOUSE Protein?
The endotoxin level is minimal, G CSF MOUSE Protein was purified using conventional chromatography techniques.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Leptin Triple Antagonist (D23L) Pegylated Mouse Recombinant

OB Protein, Obesity Protein, OBS, Obesity factor.

Product # :

CYT-1242

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Description

Leptin Antagonist Triple Mutant D23L Mouse Recombinant is a single non-glycosilated polypeptide chain containing 146 amino and additional Ala at N-terminus. The Leptin antagonist was mutated, resulting in L39A/D40A/F41A mutant. The Mouse Leptin antagonist is bound to 20 kDa mono-PEG at N-terminus, resulting in 35.6 kDa. The Mouse Leptin triple anatagonist runs as a 48 kDa. Leptin Antagonist Triple Mutant Mouse Recombinant was purified by proprietary chromatographic techniques.

Source

Escherichia coli.

Formulation

The Mouse Leptin triple anatagonist was lyophilized from a concentrated (0.65mg/ml) solution with 0.003mM NaHCO3.

Purity

Greater than 99.0% as determined by:

(a) Gel filtration analysis.

(b) Analysis by SDS-PAGE.

Biological Activity

Leptin Antagonist Triple Mutant D23L Mouse Recombinant is capable of stimulating proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Its in vitro activity is only slightly lower than the non-pegylated recombinant mouse leptin but in vivo it has profound weight reducing effect (as compared to the non-pegylated recombinant mouse leptin), resulting mainly from reduced food intake.

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Synonyms
OB Protein, Obesity Protein, OBS, Obesity factor.
Physical Appearance
White lyophilized (freeze-dried) powder.
Stability
Lyophilized Leptin Antagonist Triple Mutant Mouse Recombinant although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1mg/ml and up to 2mM and filter sterilization LEP mutant can be stored at 4°C or even room temperature for several weeks making it suitable for long term infusion studies using osmotic pumps. At lower concentration addition of a carrier protein (0.1% HSA or BSA) is suggested. Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized Leptin Antagonist Triple Mutant Mouse Recombinant in sterile water or sterile 0.4% NaHCO3adjusted to pH 8-9, not less than 100µg/ml, which can then be further diluted with other aqueous solutions.
Background
Leptin is a hormone which mainly produced by adipocytes . Leptin’s main part is to regulate long-term energy balance. Leptin is encoded by the LEP gene. Leptin effects mainly on leptin receptors in the cell mambrane of various cells in the human body. The leptin receptor is found on a wide range of cell types. The leptin receptor is a single-transmembrane-domain type 1 cytokine receptor. leptin levels influence satiety, appetite and triggers behaviors which lead to energy savings High leptin levels are interpreted by the brain that energy reserves are high, whereas low leptin levels means that energy reserves are low, in the process adapting the organism to starvation through a variety of metabolic, neurobiochemical, endocrine and behavioral change.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Insulin-Like Growth Factor Binding Protein-7 Human Recombinant

Insulin-like growth factor-binding protein 7, IBP-7, IGF-binding protein 7, IGFBP-7, IGFBP-rP1, MAC25 protein, PGI2-stimulating factor, Prostacyclin-stimulating factor, Tumor-derived adhesion factor, TAF, IGFBP7, MAC25, PSF, AGM, FSTL2, RAMSVPS, IGFBP-7v, IGFBPRP1.

Product # :

CYT-788

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Description

Recombinant Human IGFBP7 produced in E.coli cells is a non-glycosylated, homodimeric protein containing 2x256 amino acid chains and having a molecular mass of 26.4kDa. The IGFBP-7 is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The IGFBP7 was lyophilized from a 0.2µm filtered concentrated solution in 20mM Tris-HCl, pH 8.5 and 150mM NaCl.

Purity

Greater than 97.0% as determined by:
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.

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Introduction
Insulin-like Growth Factor-Binding Protein 7 (IGFBP7) is a member of the IGFBP family. IGFBP family members are all cysteine rich proteins with conserved cysteine and have an IGFBP domain, a Kazal-like domain and an Ig-like C2-type domain. IGFBP7 is expressed in a broad range of normal human tissues and it mostly shows reduced expression in cancer cell lines of prostate, breast, colon, and lung origin. IGFBP7 has a role in skeletal myogenesis by binding to IGF in a manner which inhibits IGF induced differentiation of skeletal myoblasts, without disturbing IGF induced proliferation. Moreover, IGFBP7 suppresses growth and colony formation of prostate and breast cancer cell lines via an IGF independent mechanism, which triggers a delay in the G1 phase of the cell cycle, and increased apoptosis.
Synonyms
Insulin-like growth factor-binding protein 7, IBP-7, IGF-binding protein 7, IGFBP-7, IGFBP-rP1, MAC25 protein, PGI2-stimulating factor, Prostacyclin-stimulating factor, Tumor-derived adhesion factor, TAF, IGFBP7, MAC25, PSF, AGM, FSTL2, RAMSVPS, IGFBP-7v, IGFBPRP1.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized IGFBP7 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IGFBP-7 should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized IGFBP-7 in sterile 20mM AcOH (acetic Acid) not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
SSSDTCGPCE PASCPPLPPL GCLLGETRDA CGCCPMCARG EGEPCGGGGA GRGYCAPGME CVKSRKRRKG KAGAAAGGPG VSGVCVCKSR YPVCGSDGTT YPSGCQLRAA SQRAESRGEK AITQVSKGTC EQGPSIVTPP KDIWNVTGAQ VYLSCEVIGI PTPVLIWNKV KRGHYGVQRT ELLPGDRDNL AIQTRGGPEK HEVTGWVLVS PLSKEDAGEY ECHASNSQGQ ASASAKITVV DALHEIPVKK GEGAEL.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Peroxisomal Biogenesis Factor 19 Human Recombinant

Peroxisomal biogenesis factor 19, Peroxisomal farnesylated protein, HK33, 33kDa housekeeping protein, PXF, PMP1, PXMP1, Peroxin-19, D1S2223E, FLJ55296.

Product # :

PRO-925

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Description

PEX19 Human Recombinant produced in E.coli is a single, non-glycosylated polypeptide chain containing 316 amino acids (1-296) and having a molecular mass of 34.6 kDa.The PEX19 is fused to a 20 amino acid His-Tag at N-terminus and purified by proprietary chromatographic techniques.

Source

E.coli.

Formulation

The PEX19 solution (1mg/ml) contains 20mM Tris-HCl buffer (pH 8.0) and 10% glycerol.

Purity

Greater than 90% as determined by SDS-PAGE.

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Introduction
PEX19 is vital for peroxisome biogenesis in Saccharomyces cerevisiae. PEX19 is limited to the outer surface of peroxisomes in liver cells and is has a part in the early stage of peroxisome membrane assembly, prior to the import of matrix protein.
Synonyms
Peroxisomal biogenesis factor 19, Peroxisomal farnesylated protein, HK33, 33kDa housekeeping protein, PXF, PMP1, PXMP1, Peroxin-19, D1S2223E, FLJ55296.
Physical Appearance
Sterile Filtered colorless solution.
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MAAAEEGCSV GAEADRELEE LLESALDDFD KAKPSPAPPS TTTAPDASGP QKRSPGDTAK DALFASQEKF FQELFDSELA SQATAEFEKA MKELAEEEPH LVEQFQKLSE AAGRVGSDMT SQQEFTSCLK ETLSGLAKNA TDLQNSSMSE EELTKAMEGL GMDEGDGEGN ILPIMQSIMQ NLLSKDVLYP SLKEITEKYP EWLQSHRESL PPEQFEKYQE QHSVMCKICE QFEAETPTDS ETTQKARFEM VLDLMQQLQD LGHPPKELAG EMPPGLNFDL DALNLSGPPG ASGEQC

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Leukemia Inhibitory Factor, GST tag Human Recombinant

D factor, MLPLI, HILDA, Emfilermin, Leukemia Inhibitory factor, Differentiation-stimulating factor, Melanoma-derived LPL inhibitor.

Product # :

CYT-001

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Description

LIF produced in E.Coli is a single, non-glycosylated polypeptide chain containing 415 amino acids (23-202a.a.) and having a molecular mass of 47.2kDa.LIF is fused to a 236 amino acid His-GST tag at N-terminus & purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The LIF GST protein solution (1mg/1ml) is formulated in 20mM Tris-HCl buffer (pH 8.0) 1mM DTT, 50mM NaCl and 20% glycerol.

Purity

Greater than 90% as determined by SDS-PAGE.

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Introduction
Leukemia inhibitory factor, is a pleiotropic cytokine which is expressed by numerous cells including activated T lymphocytes, monocytes, mast cells and neuronal cells. LIF takes part in the induction of hematopoietic differentiation in normal and myeloid leukemia cells, induction of neuronal cell differentiation, regulator of mesenchymal to epithelial conversion during kidney development, and is a key player in immune tolerance at the maternal-fetal interface.
Synonyms
D factor, MLPLI, HILDA, Emfilermin, Leukemia Inhibitory factor, Differentiation-stimulating factor, Melanoma-derived LPL inhibitor.
Physical Appearance
Sterile Filtered clear solution.
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time.Please avoid freeze thaw cycles.
Amino Acid Sequence
MHHHHHHMSP ILGYWKIKGL VQPTRLLLEY LEEKYEEHLY ERDEGDKWRN KKFELGLEFP NLPYYIDGDV KLTQSMAIIR YIADKHNMLG GCPKERAEIS MLEGAVLDIR YGVSRIAYSK DFETLKVDFL SKLPEMLKMF EDRLCHKTYL NGDHVTHPDF MLYDALDVVL YMDPMCLDAF PKLVCFKKRI EAIPQIDKYL KSSKYIAWPL QGWQATFGGG DHPPKSDLVP RGSHMSPLPI TPVNATCAIR HPCHNNLMNQ IRSQLAQLNG SANALFILYY TAQGEPFPNN LDKLCGPNVT DFPPFHANGT EKAKLVELYR IVVYLGTSLG NITRDQKILN PSALSLHSKL NATADILRGL LSNVLCRLCS KYHVGHVDVT YGPDTSGKDV FQKKKLGCQL LGKYKQIIAV LAQAF

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Bone Morphogenetic protein-3 Human Recombinant

Bone Morphogenetic Protein 3, Osteogenin, Bone Morphogenetic Protein 3 (Osteogenic), Bone Morphogenetic Protein 3A, BMP-3A, BMP-3, Bone Morphogenetic Protein-3, BMP3A, BMP3.

Product # :

CYT-937

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Quantity :

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Description

BMP3 Human Recombinant produced in E.coli is a non-glycosylated disulfide linked homodimer containing 2 chains of 110 amino acids and having a molecular mass of 24.8kDa.The BMP-3 is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

BMP-3 protein was lyophilized from a 0.2µm filtered concentrated solution in 30% Acetonitrile and 0.1% TFA.

Purity

Greater than 95.0% as determined by: (a) Analysis by HPLC. (b) Analysis by SDS-PAGE.

Biological Activity

The ED₅₀ as determined by its ability to inhibit BMP-2-induced activity in murine MC3T3- E1 cells.

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Introduction
Bone Morphogenetic Protein 3 (BMP3) is one of the BMPs, some of which are members of the TGF-beta superfamily (BMP2-7). There are more than 13 BMPs, which are involved in inducing cartilage and bone formation, embryogenesis and morphogenesis of various tissues and organs. In addition, BMPs regulate the growth, differentiation, chemotaxis, and apoptosis of various cell types. Akin to most other TGF-beta family proteins, BMPs are extremely conserved across animal species. At the amino acid sequence level, mature human and rat BMP3 are 98% identical.
Synonyms
Bone Morphogenetic Protein 3, Osteogenin, Bone Morphogenetic Protein 3 (Osteogenic), Bone Morphogenetic Protein 3A, BMP-3A, BMP-3, Bone Morphogenetic Protein-3, BMP3A, BMP3.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized BMP3 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution BMP-3 should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized BMP3 in sterile 4mM HCl not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
QWIEPRNCAR RYLKVDFADI GWSEWIISPK SFDAYYCSGA CQFPMPKSLK PSNHATIQSI VRAVGVVPGI PEPCCVPEKM SSLSILFFDE NKNVVLKVYP NMTVESCACR.
Background
Bone Morphogenetic Protein-3 Human Recombinant: Unveiling the Potential of a Key Regulator in Tissue Regeneration
Abstract:
Bone Morphogenetic Protein-3 (BMP-3) human recombinant is a critical member of the bone morphogenetic protein family, known for its role in tissue development, repair, and regeneration. This research paper provides a comprehensive analysis of BMP-3, including its characteristics, signaling pathways, and potential therapeutic applications. Additionally, innovative methodologies for the production and optimization of BMP-3 human recombinant are proposed, shedding light on its future implications in the field of regenerative medicine.
Introduction:
Tissue regeneration is a complex biological process requiring precise molecular cues. BMP-3, a crucial member of the BMP family, plays a significant role in tissue development and regeneration. This paper explores the unique features of BMP-3 and presents novel approaches for its production and optimization, aiming to unlock its therapeutic potential in various regenerative contexts.
Characteristics and Signaling Pathways:
BMP-3 is a secreted protein that binds to cell surface receptors, initiating intracellular signaling cascades. It influences cell differentiation, proliferation, and extracellular matrix synthesis through both Smad-dependent and Smad-independent signaling pathways. BMP-3 signaling regulates critical processes involved in tissue regeneration, including chondrogenesis and osteogenesis.
Production of BMP-3 Human Recombinant:
Efficient production methodologies are essential for harnessing the therapeutic potential of BMP-3 human recombinant. Recombinant protein expression systems, such as Escherichia coli or mammalian cells, have been utilized to produce functional BMP-3. Optimization strategies, including codon optimization, signal peptide engineering, and protein folding optimization, have been employed to enhance the yield and activity of BMP-3 recombinant protein.
Potential Therapeutic Applications:
BMP-3 human recombinant holds significant promise in the field of regenerative medicine. It plays a crucial role in bone and cartilage regeneration, making it a potential candidate for the treatment of skeletal disorders and tissue injuries. Additionally, BMP-3 signaling influences tissue remodeling and wound healing, suggesting its broader therapeutic applications in other regenerative processes.
Conclusion:
BMP-3 human recombinant represents a key regulator in tissue regeneration, with immense potential in regenerative medicine. Optimizing production methodologies and further unraveling its signaling mechanisms will enhance its therapeutic applications. With its implications in bone and cartilage regeneration and its role in tissue remodeling, BMP-3 human recombinant emerges as a promising tool for promoting tissue repair and regeneration.
What is the molecular weight/Mw of BMP3 Protein?
BMP3 Protein has a total Mw of 24.8kDa.

What is the source or expression system of BMP3 Protein?
Escherichia Coli.

What is the Purity of BMP3 Protein?
BMP3 Protein is >95% pure as determined by SDS-PAGE.

What is the Biological Activity of BMP3 Protein?
The ED50 as determined by its ability to inhibit BMP-2-induced activity in murine MC3T3- E1 cells.

What is the amino acid sequence of BMP3 Protein?
QWIEPRNCAR RYLKVDFADI GWSEWIISPK SFDAYYCSGA CQFPMPKSLK PSNHATIQSI VRAVGVVPGI PEPCCVPEKM SSLSILFFDE NKNVVLKVYP NMTVESCACR.

What applications can BMP3 Protein be used in?
BMP3 Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for BMP3 Protein?
The endotoxin level is minimal, BMP3 Protein was purified using conventional chromatography techniques.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Flt3 Ligand Porcine Recombinant

Fms-related tyrosine kinase 3 ligand, FLK2, STK1, CD135, Stem Cell Tyrosine Kinase 1, FLT3LG, Flt3.

Product # :

CYT-1041

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Description

Flt3-Ligand Porcine Recombinant produced in E.Coli is a non-glycosylated, polypeptide chain containing 155 amino acids and having a molecular mass of approximately 17.3kDa. Flt3-Ligand is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The protein is lyophilized with 10mM Sodium Phosphate pH-7.5.

Purity

Greater than 95.0% as determined by SDS-PAGE.

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Introduction
FLT3 ligand is a receptor for the fl cytokine has a tyrosine-protein kinase activity & a growth factor that regulates proliferation of early hematopoietic cells. Flt3-Ligand synergizes with other CSFs and interleukins to induce growth and differentiation.
Synonyms
Fms-related tyrosine kinase 3 ligand, FLK2, STK1, CD135, Stem Cell Tyrosine Kinase 1, FLT3LG, Flt3.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Porcine Flt3-Ligand although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Flt3-Ligand should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized Flt3-L in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
MSPDCSFPHS PISSTFANTI RQLSDYLLQD YPVTVASNLQ DDELCGAFWR LVLAQRWMGQ LKTVAGSQMQ KLLEAVNTEI VFVTSCALQP LPSCLRFVQA NISHLLQDTS QQLVALKPWI TRRNFSRCLE LQCQPDPSTL LPPRSPGALE ATSLP.
Background
What is the molecular weight/Mw of FLT3 LIGAND PORCINE Protein?
FLT3 LIGAND PORCINE Protein has a total Mw of 17.3kDa.

What is the source or expression system of FLT3 LIGAND PORCINE Protein?
Escherichia Coli.

What is the Purity of FLT3 LIGAND PORCINE Protein?
FLT3 LIGAND PORCINE Protein is >95% pure as determined by SDS-PAGE.

What is the Biological Activity of FLT3 LIGAND PORCINE Protein?
The biological functionality of FLT3 LIGAND PORCINE Protein will be determined in the future.

What is the amino acid sequence of FLT3 LIGAND PORCINE Protein?
MSPDCSFPHS PISSTFANTI RQLSDYLLQD YPVTVASNLQ DDELCGAFWR LVLAQRWMGQ LKTVAGSQMQ KLLEAVNTEI VFVTSCALQP LPSCLRFVQA NISHLLQDTS QQLVALKPWI TRRNFSRCLE LQCQPDPSTL LPPRSPGALE ATSLP.

What applications can FLT3 LIGAND PORCINE Protein be used in?
FLT3 LIGAND PORCINE Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for FLT3 LIGAND PORCINE Protein?
The endotoxin level is minimal, FLT3 LIGAND PORCINE Protein was purified using conventional chromatography techniques.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

IGF-1 Rat Recombinant

Somatomedin C, IGF-I, IGFIA, IGF1.

Product # :

CYT-289

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Description

IGF-1 Rat Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 70 amino acids and having a molecular mass of 7.7kDa. IGF-I is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The protein was lyophilized with a 0.2µm filtered concentrated solution in 20mM PBS, pH 7.0.

Purity

Greater than 98.0% as determined by SDS-PAGE.

Biological Activity

The ED₅₀ as determined by a cell proliferation assay using FDC-P1 cells is less than 2.0ng/ml, corresponding to a specific activity of >500,000units/mg.

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Introduction
The somatomedins, or IGFs, comprise a family of peptides that play important roles in mammalian growth and development. IGF1 mediates many of the growth-promoting effects of GH. Early studies showed that GH did not directly stimulate the incorporation of sulfate into cartilage, but rather acted through a serum factor, termed 'sulfation factor,' which later became known as 'somatomedin' (Daughaday et al., 1972). Three main somatomedins have been characterized: somatomedin C (IGF1), somatomedin A (IGF2; MIM 147470), and somatomedin B (MIM 193190) (Rotwein, 1986; Rosenfeld, 2003).
Synonyms
Somatomedin C, IGF-I, IGFIA, IGF1.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized IGF-1 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IGFI should be stored at 4°C between 2-7 days and for future use below -18°C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized IGF1 in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
GPETLCGAEL VDALQFVCGP RGFYFNKPTG YGSSIRRAPQ TGIVDECCFR SCDLRRLEMY CAPLKPTKSA.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Stem Cell Factor Mouse Recombinant

Kit ligand Precursor, C-kit ligand, SCF, Mast cell growth factor, MGF, SF, KL-1, Kitl, DKFZp686F2250, Hematopoietic growth factor KL, Steel factor.

Product # :

CYT-275

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Description

Stem Cell Factor Mouse Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 165 amino acids and having a molecular mass of 18309 Dalton. The SCF is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

Lyophilized from a concentrated (1mg/ml) solution in water containing 0.02% NaHCO3.

Purity

Greater than 98.0% as determined by:
(a) Analysis by SEC-HPLC.
(b) Analysis by SDS-PAGE.

Biological Activity

The ED50 as determined by the dose-dependant stimulation of Human TF-1 cell line is < 10 ng/ml, corresponding to a Specific Activity of 1x10⁵IU/mg.

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Introduction
Stem cell factor / KIT ligand (SCF) is a cytokine which binds CD117(c-Kit). SCF is also known as "steel factor" or "c-kit ligand". SCF exists in two forms, cell surface bound SCF and soluble (or free) SCF. Soluble SCF is produced by the cleavage of surface bound SCF by metalloproteases.
SCF is a growth factor important for the survival, proliferation, and differentiation of hematopoietic stem cells and other hematopoietic progenitor cells. One of its roles is to change the BFU-E (burst-forming unit-erythroid) cells, which are the earliest erythrocyte precursors in the erythrocytic series, into the CFU-E (colony-forming unit-erythroid).
Synonyms
Kit ligand Precursor, C-kit ligand, SCF, Mast cell growth factor, MGF, SF, KL-1, Kitl, DKFZp686F2250, Hematopoietic growth factor KL, Steel factor.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized KIT ligand although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution SCF should be stored at 4°C between 2-7 days and for future use below -18°C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized Stem Cell Factor in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
MKEICGNPVT DNVKDITKLV ANLPNDYMIT LNYVAGMDVL PSHCWLRDMV IQLSLSLTTL LDKFSNISEG LSNYSIIDKL GKIVDDLVLC MEENAPKNIK ESPKRPETRS FTPEEFFSIF NRSIDAFKDF MVASDTSDCV LSSTLGPEKD SRVSVTKPFM LPPVA.
Protein content
Protein quantitation was carried out by two independent methods:1. UV spectroscopy at 280 nm using the absorbency value of 0.52 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics). 2. Analysis by RP-HPLC, using a standard solution of Stem Cell Factor as a Reference Standard.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Prolactin Receptor Antagonist, S. Active Human Recombinant

Mammotropin, Luteotropic hormone, Luteotropin, PRL.

Product # :

CYT-1253

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Description

Prolactin Human Receptor Antagonist del 1-9, G129R mutant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 190 amino acids + an additional Ala at n-terminal and having a molecular mass of ~ 22 kDa was modified by additional 12 mutations. The Human Prolactin Receptor Antagonist is purified by proprietary chromatographic techniques.

Source

Escherichia coli.

Formulation

The protein was lyophilized from a concentrated (1-2mg/ml) solution with 0.02% -0.03% NaHCO3.

Purity

Greater than 97.0% as determined by:

(a) Analysis by Gel Filtration.

(b) Analysis by SDS-PAGE.

Biological Activity

fully biologically active as evidenced by inhibiting PRLR-induced proliferation of Nb2 cells or Baf3 cells stably transfected with hPRL receptors. It also interacts at 1:1 molar ratio with human prolactin receptor extracellular domain as documented by SEC and SPR (Biacore analysis). It is ~ 100 fold more potent than 1-9 G129R hPRL in Ba/F3 cells and > 1000-fold potent in Nb2 cells.

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Synonyms
Mammotropin, Luteotropic hormone, Luteotropin, PRL.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized PRLR although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1 mg/ml and up to 3 mg/ml and filter sterilization PRLR can be stored at 4C for several weeks. Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized PRLR in sterile 0.4% NaHCO3 adjusted to pH 8-9 not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
The sequence of the first six N-terminal amino acids was determined and was found to be Ala-Arg-Ser-Gln-Val-Thr
Background
Prolactin is a pituitary hormone which takes part in the stimulation of milk production, salt and water regulation, development, growth and reproduction. The primary step in its action is binding a specific membrane receptor (prolactin receptor) which belongs to the superfamily of class 1 cytokine receptors. PRLR varies in size (short and long forms) with tissue source and species, from ~40 kDa to 100 kDa. The PRL-R consists of at least 3 separate domains: an extracellular region with 5 cysteines which contains the prolactin binding site, a single transmembrane domain and a cytoplasmic region, the length of which appears to influence ligand binding and regulate cellular function.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Nephroblastoma Overexpressed Human Recombinant

Protein NOV homolog, NovH, CCN family member 3, nsulin-like growth factor-binding protein 9, IBP-9, IGF-binding protein 9, IGFBP-9, Nephroblastoma-overexpressed gene protein homolog, NOV, CCN3, IGFBP9, NOVH.

Product # :

CYT-805

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Description

Nephroblastoma Overexpressed Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 331 amino acids and having a molecular mass of 36.2 kDa. The NOV is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

Lyophilized from a 0.2µm filtered concentrated solution in 20mM Tris-HCl, pH 8.6 and 150 mM NaCl.

Purity

Greater than 95.0% as determined by:(a) Analysis by RP-HPLC.(b) Analysis by SDS-PAGE.

Biological Activity

Determined by a cell proliferation assay using murine Balb/c 3T3 cells is less than 1.0 µg/ml, corresponding to a specific activity of > 1000 IU/mg. range of 10.0 -50.0 ng/ml, corresponding to a specific activity of 20,000-100,000units/mg.

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Introduction
Nephroblastoma Overexpressed (NOV) which is encoded by the NOV gene is a part of the CCN (CTGF/CYR61/NOV) family. NOV takes part in reducing tumorgenicity and proliferation of certain cancer cell lines. NOV interacts with numerous proteins and is involved in both internal and external cell signaling. NOV is expressed in particular tumors, including Wilm’s tumor and most nephroblastomas and is also exerts proangiogenic activities.
Synonyms
Protein NOV homolog, NovH, CCN family member 3, nsulin-like growth factor-binding protein 9, IBP-9, IGF-binding protein 9, IGFBP-9, Nephroblastoma-overexpressed gene protein homolog, NOV, CCN3, IGFBP9, NOVH.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized NOV although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution NOV should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized NOV in sterile 18M-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
MQVAATQRCP PQCPGRCPAT PPTCAPGVRA VLDGCSCCLV CARQRGESCS DLEPCDESSG LYCDRSADPS NQTGICTAVE GDNCVFDGVI YRSGEKFQPS CKFQCTCRDG QIGCVPRCQL DVLLPEPNCP APRKVEVPGE CCEKWICGPD EEDSLGGLTL AAYRPEATLG VEVSDSSVNC IEQTTEWTAC SKSCGMGFST RVTNRNRQCE MLKQTRLCMV RPCEQEPEQP TDKKGKKCLR TKKSLKAIHL QFKNCTSLHT YKPRFCGVCS DGRCCTPHNT KTIQAEFQCS PGQIVKKPVM VIGTCTCHTN CPKNNEAFLQ ELELKTTRGK M.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Profilin-2 Human Recombinant

Profilin-II, PFN2, Profilin-2, PFL, D3S1319E.

Product # :

PRO-809

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Description

PFN2 Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 160 amino acids (1-140 a.a.) and having a molecular mass of 17.2 kDa. PFN2 protein is fused to a 20 amino acid His-Tag at N-terminus and purified by standard chromatography.

Source

Escherichia Coli.

Formulation

PFN2 protein solution (1mg/ml) containing 20mM Tris-HCl pH-8, 1mM DTT and 10% glycerol.

Purity

Greater than 95% as determined by SDS-PAGE.

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Introduction
PFN2 is a ubiquitous actin monomer-binding protein which is part of the profilin family. PFN2 regulates actin polymerization in response to extra cellular signals. PFN2 binds to actin and affects the structure of the cytoskeleton. At high concentrations, profilin prevents the polymerization of actin, while it increases it at low concentrations. PFN2 binds to PIP2, it inhibits the formation of IP3 and DG.
Synonyms
Profilin-II, PFN2, Profilin-2, PFL, D3S1319E.
Physical Appearance
Sterile filtered colorless solution.
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MAGWQSYVDN LMCDGCCQEA AIVGYCDAKY VWAATAGGVF QSITPIEIDM IVGKDREGFF TNGLALGAKK CSVIRDSLYV DGDCTMDIRT KSQGGEPTYN VAVGRAGRVL VFVMGKEGVH GGGLNKKAYS MAKYLRDSGF.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Follistatin Human Recombinant, Sf9

Follistatin, FS, Activin-Binding Protein, Follistatin Isoform FST317, FST.

Product # :

CYT-865

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sds-page

Description

FST produced in Sf9 Baculovirus cells is a single, glycosylated polypeptide chain containing 295 amino acids (30-317a.a.) and having a molecular mass of 32.5kDa.FST is expressed with a 7 amino acid His tag at C-Terminus and purified by proprietary chromatographic techniques.

Source

Sf9, Baculovirus cells.

Formulation

FST protein solution (0.25mg/ml) contains Phosphate buffered saline (pH7.4) and 10% glycerol.

Purity

Greater than 90.0% as determined by SDS-PAGE.

sds-page

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Introduction
Follistatin is a single-chain gonadal protein that specifically inhibits follicle-stimulating hormone release. The single FST gene encodes two isoforms, FST317 and FST344 containing 317 and 344 amino acids respectively, resulting from alternative splicing of the precursor mRNA. In a study in which 37 candidate genes were tested for linkage and association with polycystic ovary syndrome (PCOS) or hyperandrogenemia in 150 families, evidence was found for linkage between PCOS and follistatin. Follistatin binds directly to activin and functions as an activin antagonist. specific inhibitor of the biosynthesis and secretion of pituitary follicle stimulating hormone (fsh).
Synonyms
Follistatin, FS, Activin-Binding Protein, Follistatin Isoform FST317, FST.
Physical Appearance
Sterile filtered colorless solution.
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
Amino Acid Sequence
MGNCWLRQAK NGRCQVLYKT ELSKEECCST GRLSTSWTEE DVNDNTLFKW MIFNGGAPNC IPCKETCENV DCGPGKKCRM NKKNKPRCVC APDCSNITWK GPVCGLDGKT YRNECALLKA RCKEQPELEV QYQGRCKKTC RDVFCPGSST CVVDQTNNAY CVTCNRICPE PASSEQYLCG NDGVTYSSAC HLRKATCLLG RSIGLAYEGK CIKAKSCEDI QCTGGKKCLW DFKVGRGRCS LCDELCPDSK SDEPVCASDN ATYASECAMK EAACSSGVLL EVKHSGSCNH HHHHH
Background
What is the molecular weight/Mw of FOLLISTATIN HUMAN, SF9 Protein?
FOLLISTATIN HUMAN, SF9 Protein has a total Mw of 32.5kDa.

What is the source or expression system of FOLLISTATIN HUMAN, SF9 Protein?
Sf9, Baculovirus cells.
What is the Purity of FOLLISTATIN HUMAN, SF9 Protein?
FOLLISTATIN HUMAN, SF9 Protein is >90% pure as determined by SDS-PAGE.

What is the Biological Activity of FOLLISTATIN HUMAN, SF9 Protein?
The biological functionality of FOLLISTATIN HUMAN, SF9 Protein will be determined in the future.

What is the amino acid sequence of FOLLISTATIN HUMAN, SF9 Protein?
MGNCWLRQAK NGRCQVLYKT ELSKEECCST GRLSTSWTEE DVNDNTLFKW MIFNGGAPNC IPCKETCENV DCGPGKKCRM NKKNKPRCVC APDCSNITWK GPVCGLDGKT YRNECALLKA RCKEQPELEV QYQGRCKKTC RDVFCPGSST CVVDQTNNAY CVTCNRICPE PASSEQYLCG NDGVTYSSAC HLRKATCLLG RSIGLAYEGK CIKAKSCEDI QCTGGKKCLW DFKVGRGRCS LCDELCPDSK SDEPVCASDN ATYASECAMK EAACSSGVLL EVKHSGSCNH HHHHH.

What applications can FOLLISTATIN HUMAN, SF9 Protein be used in?
FOLLISTATIN HUMAN, SF9 Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for FOLLISTATIN HUMAN, SF9 Protein?
The endotoxin level is minimal, FOLLISTATIN HUMAN, SF9 Protein was purified using conventional chromatography techniques.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Phosphoglycerate Kinase 1 Human Recombinant

Phosphoglycerate kinase 1, Primer recognition protein 2, Cell migration-inducing gene 10 protein, PRP 2, PGKA, MIG10, MGC8947, MGC117307, MGC142128, PGK1.

Product # :

PKA-351

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Description

PGK1 Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 437 amino acids (1-417 a.a.) and having a molecular mass of 46.8kDa. PGK1 is fused to 20 a.a. His-Tag at N-terminus and purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The PGK1 solution containing 20mM Tris (pH 8.0), 10% Glycerol and 1mM DTT.

Purity

Greater than 95.0% as determined by SDS-PAGE.

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Introduction
PGK1 is an X-linked enzyme that has a major role in the glycolytic pathway. PGK1 is a glycolytic enzyme which catalyzes the conversion of 1,3-diphosphoglycerate to 3-phosphoglycerate, generating an ATP molecule. PGK1 may also act as a cofactor for polymerase alpha. Defects in the PGK1 gene are usually associated with chronic hemolytic anemia, though it can be accompanied by either mental retardation or muscular disease (rhabdomyolysis). Overexpression of PGK1 and its signalling targets are possibly an expression-pathway in diffuse primary gastric carcinomas promoting peritoneal dissemination. It was shown that PGK1 is differentially expressed in the dorsolateral prefrontal cortex from patients with schizophrenia.
Synonyms
Phosphoglycerate kinase 1, Primer recognition protein 2, Cell migration-inducing gene 10 protein, PRP 2, PGKA, MIG10, MGC8947, MGC117307, MGC142128, PGK1.
Physical Appearance
Sterile filtered colorless solution.
Stability
PGK1 although stable at 4°C for 1 week, should be stored below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze thaw cycles.
Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MSLSNKLTLD KLDVKGKRVV MRVDFNVPMK NNQITNNQRI KAAVPSIKFC LDNGAKSVVL MSHLGRPDGV PMPDKYSLEP VAVELKSLLG KDVLFLKDCV GPEVEKACAN PAAGSVILLE NLRFHVEEEG KGKDASGNKV KAEPAKIEAF RASLSKLGDV YVNDAFGTAH RAHSSMVGVN LPQKAGGFLM KKELNYFAKA LESPERPFLA ILGGAKVADK IQLINNMLDK VNEMIIGGGM AFTFLKVLNN MEIGTSLFDE EGAKIVKDLM SKAEKNGVKI TLPVDFVTAD KFDENAKTGQ ATVASGIPAG WMGLDCGPES SKKYAEAVTR AKQIVWNGPV GVFEWEAFAR GTKALMDEVV KATSRGCITI IGGGDTATCC AKWNTEDKVS HVSTGGGASL ELLEGKVLPG VDALSNI.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Follistatin Like 1 Human Recombinant, HEK

Follistatin-related protein 1, Follistatin-like protein 1, FSTL1, FRP, Follistatin Like 1, FSL1, MIR198.

Product # :

CYT-1027

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Description

FSTL1 Human Recombinant produced in HEK293 cells is a single, glycosylated polypeptide chain (a.a 21-308) containing 296 amino acids including a 8 a.a C-terminal His tag. The total molecular mass is 33.8kDa (calculated).

Source

HEK293 cells.

Formulation

FSTL1 filtered (0.4 µm) and lyophilized from 0.5mg/ml in phosphate buffered saline and 5 % (w/v) trehalose, pH 7.4.

Purity

Greater than 95.0% as determined by SDS-PAGE.

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Introduction
FSTL1 protein resembles follistatin, an activin-binding protein. FSTL1 is an autoantigen associated with rheumatoid arthritis and it holds an FS section, a follistatin-like sequence having 10 conserved cysteine residues.
Synonyms
Follistatin-related protein 1, Follistatin-like protein 1, FSTL1, FRP, Follistatin Like 1, FSL1, MIR198.
Physical Appearance
Filtered White lyophilized (freeze-dried) powder.
Stability
Store lyophilized protein at -20°C. Aliquot the product after reconstitution to avoid repeated freezing/thawing cycles. Reconstituted protein can be stored at 4°C for a limited period of time; it does not show any change after one week at 4°C.
Solubility
It is recommended to add deionized water to prepare a working stock solution of approximately 0.5mg/ml and let the lyophilized pellet dissolve completely. FSTL1 is not sterile! Please filter the product by an appropriate sterile filter before using it in the cell culture.
Amino Acid Sequence
EEELRSKSKI CANVFCGAGR ECAVTEKGEP TCLCIEQCKP HKRPVCGSNG KTYLNHCELH RDACLTGSKI QVDYDGHCKE KKSVSPSASP VVCYQSNRDE LRRRIIQWLE AEIIPDGWFS KGSNYSEILD KYFKNFDNGD SRLDSSEFLK FVEQNETAIN ITTYPDQENN KLLRGLCVDA LIELSDENAD WKLSFQEFLK CLNPSFNPPE KKCALEDETY ADGAETEVDC NRCVCACGNW VCTAMTCDGK NQKGAQTQTE EEMTRYVQEL QKHQETAEKT KRVSTKEIHH HHHHHH.
Background
What is the molecular weight/Mw of FSTL1 HUMAN, HEK Protein?
FSTL1 HUMAN, HEK Protein has a total Mw of 33.8kDa.

What is the source or expression system of FSTL1 HUMAN, HEK Protein?
HEK293 cells.

What is the Purity of FSTL1 HUMAN, HEK Protein?
FSTL1 HUMAN, HEK Protein is >95% pure as determined by SDS-PAGE.

What is the Biological Activity of FSTL1 HUMAN, HEK Protein?
The biological functionality of FSTL1 HUMAN, HEK Protein will be determined in the future.

What is the amino acid sequence of FSTL1 HUMAN, HEK Protein?
EEELRSKSKI CANVFCGAGR ECAVTEKGEP TCLCIEQCKP HKRPVCGSNG KTYLNHCELH RDACLTGSKI QVDYDGHCKE KKSVSPSASP VVCYQSNRDE LRRRIIQWLE AEIIPDGWFS KGSNYSEILD KYFKNFDNGD SRLDSSEFLK FVEQNETAIN ITTYPDQENN KLLRGLCVDA LIELSDENAD WKLSFQEFLK CLNPSFNPPE KKCALEDETY ADGAETEVDC NRCVCACGNW VCTAMTCDGK NQKGAQTQTE EEMTRYVQEL QKHQETAEKT KRVSTKEIHH HHHHHH.

What applications can FSTL1 HUMAN, HEK Protein be used in?
FSTL1 HUMAN, HEK Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for FSTL1 HUMAN, HEK Protein?
The endotoxin level is minimal, FSTL1 HUMAN, HEK Protein was purified using conventional chromatography techniques.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Myostatin Propeptide Human Recombinant, HEK

GDF-8, MSTN, Growth Differentiation Factor 8, MSTN Muscle Hypertrophy.

Product # :

CYT-936

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Description

Myostatin Propetide Human Recombinant produced in HEK cells is a single, glycosylated, polypeptide chain (Asn24-Arg266) containing a total of 253 amino acids, having a calculated molecular mass of 29.1kDa. Myostatin Propetide is fused to a 10 aa C-terminal His tag.

Source

HEK 293.

Formulation

Myostatin Propetide solution at a concentration of 0.25mg/ml in phosphate buffered saline (PBS) pH 8.0 and 20% (w/v) glycerol.

Purity

Greater than 80.0% as determined by SDS-PAGE.

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Introduction
GDF8 is a member of the bone morphogenetic protein (BMP) family and the TGF-beta superfamily. This group of proteins is characterized by a polybasic proteolytic processing site which is cleaved to produce a mature protein containing seven conserved cysteine residues. The members of this family are regulators of cell growth and differentiation in both embryonic and adult tissues. This gene is thought to encode a secreted protein which negatively regulates skeletal muscle growth.
Synonyms
GDF-8, MSTN, Growth Differentiation Factor 8, MSTN Muscle Hypertrophy.
Physical Appearance
Filtered colorless solution.
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
Amino Acid Sequence
NENSEQKENV EKEGLCNACT WRQNTKSSRI EAIKIQILSK LRLETAPNIS KDVIRQLLPK APPLRELIDQ YDVQRDDSSD GSLEDDDYHA TTETIITMPT ESDFLMQVDG KPKCCFFKFS SKIQYNKVVK AQLWIYLRPV ETPTTVFVQI LRLIKPMKDG TRYTGIRSLK LDMNPGTGIW QSIDVKTVLQ NWLKQPESNL GIEIKALDEN GHDLAVTFPG PGEDGLNPFL EVKVTDTPKR SRR HHHHHHH HHH.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Galectin-2 Human Recombinant

HL14, Gal-2, Beta-galactoside-binding lectin L-14-II, Lactose-binding lectin 2, S-Lac lectin 2.

Product # :

CYT-725

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SDS-PAGE

Description

LGALS2 Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 152 amino acids (1-132 a.a.) and having a molecular mass of 16.8 kDa. The LGALS2 is fused to a 20 amino acid His-Tag at N-terminus and purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The Galectin-2 His tag 0.5mg/ml protein solution contains 20mM Tris-HCl pH-8, 0.2M NaCl, 10% glycerol & 1mM DTT.

Purity

Greater than 95.0% as determined by SDS-PAGE.

SDS-PAGE

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Introduction
LGALS2 is a soluble beta-galactoside binding lectin that controls cell-to-cell adhesion and cell-to-extracellular matrix interactions and takes part in tumor progression, pre-mRNA splicing and apoptosis. LGALS2 induces apoptosis in activated T cells and binds to the cytokine lymphotoxin-alpha (LTA) with threat of myocardial infarction.
Synonyms
HL14, Gal-2, Beta-galactoside-binding lectin L-14-II, Lactose-binding lectin 2, S-Lac lectin 2.
Physical Appearance
Sterile Filtered colorless solution.
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MTGELEVKNM DMKPGSTLKI TGSIADGTDG FVINLGQGTD KLNLHFNPRF SESTIVCNSL DGSNWGQEQR
EDHLCFSPGS EVKFTVTFES DKFKVKLPDG HELTFPNRLG HSHLSYLSVR GGFNMSSFKL KE.
Background
What is the molecular weight/Mw of LGALS2 HUMAN Protein?
LGALS2 HUMAN Protein has a total Mw of 17kDa.

What is the source or expression system of LGALS2 HUMAN Protein?
Escherichia Coli.

What is the Purity of LGALS2 HUMAN Protein?
LGALS2 HUMAN Protein is >95% pure as determined by SDS-PAGE.

What is the Biological Activity of LGALS2 HUMAN Protein?
The biological functionality of LGALS2 HUMAN Protein will be determined in the future.

What is the amino acid sequence of LGALS2 HUMAN Protein?
MGSSHHHHHH SSGLVPRGSH MGSHMACGLV ASNLNLKPGE CLKVRGEVAS DAKSFVLNLG KDSNNLCLHF NPRFNAHGDA NTIVCNTKED GTWGTEHREP AFPFQPGSIT EVCITFDQAD LTIKLPDGHE FKFPNRLNME AINYMAADGD FKIKCVAFE.
What applications can LGALS2 HUMAN Protein be used in?
LGALS2 HUMAN Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for LGALS2 HUMAN Protein?
The endotoxin level is minimal, LGALS2 HUMAN Protein was purified using conventional chromatography techniques.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Nephroblastoma Overexpressed Human Recombinant, HEK

Protein NOV homolog, NovH, CCN family member 3, nsulin-like growth factor-binding protein 9, IBP-9, IGF-binding protein 9, IGFBP-9, Nephroblastoma-overexpressed gene protein homolog, NOV, CCN3, IGFBP9, NOVH.

Product # :

CYT-1032

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Shipped at Room temp

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Description

NOV Human Recombinant produced in HEK293 cells is a single, glycosylated polypeptide chain (a.a 33-357) containing 331 amino acids including a 6 a.a C-terminal His tag. The total molecular mass is 36.5kDa (calculated).

Source

HEK293 cells.

Formulation

NOV filtered (0.4 µm) and lyophilized from 0.5mg/ml in PBS and 5 % (w/v) trehalose.

Purity

Greater than 90.0% as determined by SDS-PAGE.

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Introduction
Nephroblastoma Overexpressed (NOV) which is encoded by the NOV gene is a part of the CCN (CTGF/CYR61/NOV) family. NOV takes part in reducing tumorgenicity and proliferation of certain cancer cell lines. NOV interacts with numerous proteins and is involved in both internal and external cell signaling. NOV is expressed in particular tumors, including Wilm’s tumor and most nephroblastomas and is also exerts proangiogenic activities.
Synonyms
Protein NOV homolog, NovH, CCN family member 3, nsulin-like growth factor-binding protein 9, IBP-9, IGF-binding protein 9, IGFBP-9, Nephroblastoma-overexpressed gene protein homolog, NOV, CCN3, IGFBP9, NOVH.
Physical Appearance
Filtered White lyophilized (freeze-dried) powder.
Stability
Store lyophilized protein at -20°C. Aliquot the product after reconstitution to avoid repeated freezing/thawing cycles. Reconstituted protein can be stored at 4°C for a limited period of time; it does not show any change after one week at 4°C.
Solubility
It is recommended to add deionized water to prepare a working stock solution of approximately 0.5mg/ml and let the lyophilized pellet dissolve completely. NOV is not sterile! Please filter the product by an appropriate sterile filter before using it in the cell culture.
Amino Acid Sequence
QRCPPQCPGR CPATPPTCAP GVRAVLDGCS CCLVCARQRG ESCSDLEPCD ESSGLYCDRS ADPSNQTGIC TAVEGDNCVF DGVIYRSGEK FQPSCKFQCT CRDGQIGCVP RCQLDVLLPE PNCPAPRKVE VPGECCEKWI CGPDEEDSLG GLTLAAYRPE ATLGVEVSDS SVNCIEQTTE WTACSKSCGM GFSTRVTNRN RQCEMLKQTR LCMVRPCEQE PEQPTDKKGK KCLRTKKSLK AIHLQFKNCT SLHTYKPRFC GVCSDGRCCT PHNTKTIQAE FQCSPGQIVK KPVMVIGTCT CHTNCPKNNE AFLQELELKT TRGKMHHHHH H.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Omentin Human Recombinant

Intelectin-1, HL1, LFR, HL-1, INTL, ITLN, hIntL.

Product # :

CYT-301

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Shipped at Room temp

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Description

Omentin Human Recombinant is produced in E.Coli by recombinant DNA technology is a single, polypeptide chain containing 313 amino acids and having a molecular mass of 35 kDa. Intelectin is purified by proprietary chromatographic techniques.

Source

E.Coli.

Formulation

Each mg of lyophilized powder contains 10mM NaP, pH-7.5 and 5:1 mannitol to protein.

Purity

Greater than 95.0% as determined by SDS-PAGE.

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Introduction
Omentin is a recently recognized gene highly localized to the mental tissue (visceral adipose tissue). Omentin is present in the stromal vascular cells in the adipose tissue rather than in the adipocytes. Omentin is predominantly expressed in the visceral adipose tissue than the subcutaneous tissue, with the omentin mRNA being 150 times higher in the visceral adipose tissue. Omentin has also been detected in human blood using western blot analysis, and seems to increase INSstimulated glucose uptake in 3T3-L1 adipocytes in mice. Omentin seems to increase Akt phosphorylation irrespective of INS presence. Its role in glucose metabolism and obesity remains to be described; an INS-sensitizing action is possible.Differences in Omentin expression has been noted in adipose tissue from normals and patients with inflammatory bowel disease although its significance is unknown.
Synonyms
Intelectin-1, HL1, LFR, HL-1, INTL, ITLN, hIntL.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Intelectin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Intelectin should be stored at 4°C between 2-7 days and for future use below -18°C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized Omentin in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
MNQLSFLLFL IATTRGWSTD EANTYFKEWTCSSSPSLPRS CKEIKDECPS AFDGLYFLRT ENGVIYQTFC DMTSGGGGWT LVASVHENDM RGKCTVGDRW SSQQGSKADY PEGDGNWANY NTFGSAEAAT SDDYKNPGYY DIQAKDLGIW HVPNKSPMQH WRNSSLLRYR TDTGFLQTLG HNLFGIYQKY PVKYGEGKCW TDNGPVIPVV YDFGDAQKTA SYYSPYGQRE FNNERAANAL CAGMRVTGCN TEHHCIGGGG YFPEASPQQC GDFSGFDWSG YGTHVGYSSS REITEAAVLLFYR.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Insulin-Like Growth Factor-1, Mouse Anti-Human

Somatomedin C, IGF-I, IGFI, IGF1, IGF-IA, Mechano growth factor, MGF.

Product # :

ANT-062

Price :

Quantity :

Shipping Method :

Shipped at Room temp

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formulation
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Formulation

1mg/ml in PBS (after reconstitution).

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Introduction
The somatomedins, or insulin-like growth factors (IGFs), comprise a family of peptides that play important roles in mammalian growth and development. IGF1 mediates many of the growth-promoting effects of growth hormone (GH; MIM 139250). Early studies showed that growth hormone did not directly stimulate the incorporation of sulfate into cartilage, but rather acted through a serum factor, termed 'sulfation factor,' which later became known as 'somatomedin' (Daughaday et al., 1972). Three main somatomedins have been characterized: somatomedin C (IGF1), somatomedin A (IGF2; MIM 147470), and somatomedin B (MIM 193190) (Rotwein, 1986; Rosenfeld, 2003).
Synonyms
Somatomedin C, IGF-I, IGFI, IGF1, IGF-IA, Mechano growth factor, MGF.
Solubility
Reconstitute with of H20. Mix gently, wash the sides of the vial and wait 30-60 seconds before use.
Immunogen
r.Human Growth Hormone
Ig Subclass
Mouse IgM
Clone
NYRhIGF1
Applications
Direct ELISA, Western Blot, Immuneprecipitation.
Titer
By direct ELISA, 1:10,000 dilution will yield 0.5 O.D using alkaline phosphatase conjugated rabbit anti-mouse Ig (Jackson Laboratories).
Type
Mouse Anti Human Monoclonal.
Storage Procedures
Lyophilized: store at 4°C. After reconstitution, if not intended for use within a month, aliquot and store at -20°C.
Purification Method
Boric acid precipitation

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Leptin Quadruple Antagonist Pegylated Ovine Recombinant

Product # :

CYT-1246

Price :

Quantity :

Shipping Method :

Shipped at Room temp

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Description

Leptin Antagonist Quadruple Mutant Ovine Recombinant is a single non-glycosilated polypeptide chain containing 146 amino acids and additional Ala at N-terminus. The Ovine Leptin antagonist was mutated, resulting in D23L/L39A/D40A/F41A mutant. The Ovine Leptin antagonist is bound to 20 kDa mono-PEG at N-terminus, resulting in 35.6 kDa. The Ovine Leptin Quadruple anatagonist Pegylated runs as a 48 kDa due to enlarged hydrodymanic volume. Leptin Antagonist Quadruple Mutant Ovine Recombinant was purified by proprietary chromatographic techniques.

Source

Escherichia coli.

Formulation

The Ovine Leptin Quadruple anatagonist was lyophilized from a concentrated (0.65mg/ml) solution with 0.003mM NaHCO3.

Purity

Greater than 95.0% as determined by:

(a) Gel filtration analysis.

(b) Analysis by SDS-PAGE.

Biological Activity

Pegylated Ovine Leptin Quadruple Antagonist inhibits leptin-induced proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Pegylated recombinant Ovine leptin antagonist in vitro activity is 6-8 fold lower than the non-pegylated recombinant super Ovine leptin antagonist but is 15 fold higher as compared to pegylated recombinant super active ovine leptin antagonist.

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Physical Appearance
White lyophilized (freeze-dried) powder.
Stability
Lyophilized Leptin Antagonist Quadruple Mutant Ovine Recombinant although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1 mg/ml and up to 2mM and filter sterilization LEP mutant can be stored at 4°C or even room temperature for several weeks making it suitable for long term infusion studies using osmotic pumps. At lower concentration addition of a carrier protein (0.1% HSA or BSA) is suggested. Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized Leptin Antagonist Quadruple Mutant Ovine Recombinant in sterile water or sterile 0.4% NaHCO3adjusted to pH 8-9, not less than 100µg/ml, which can then be further diluted with other aqueous solutions.
Background
Leptin is mainly produced by adipocytes. Leptin’s main part is to regulate long-term energy balance. Leptin is encoded by the LEP gene. Leptin effects mostly on leptin receptors in the cell mambrane of various cells in the human body. The leptin receptor can be found on a various cell types. The leptin receptor is a single-transmembrane-domain type 1 cytokine receptor. leptin levels influence satiety, appetite and triggers behaviours which save energy. High leptin levels are interpreted by the brain that energy reserves are high, whereas low leptin levels means that energy reserves are low, in the process adapting the organism to starvation through a variety of metabolic, neurobiochemical, endocrine and behavioral change.
Protein content
Protein quantization was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.2 as the extinction coefficient for a 0.1% (1mg/ml) solution at pH 8.0. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

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