Search: 1000 results found for "Placental Lactogen"

Description:

Parathyroid Hormone (7-34) Human Recombinant

PTH/PTHrP receptor antagonist, PTHrP analog, PTHR, MGC138426, MGC138452.

Product # :

HOR-266

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Description

Parathyroid Hormone Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 28 amino acids and having a molecular mass of 3.4kDa. The PTH is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

Lyophilized from a 0.2μm filtered concentrated solution in PBS, pH 7.4.

Purity

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

Biological Activity

The activity calculated by UMR106 cell/cAMP method corresponding to a specific activity of 10,000 Units/mg.

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Introduction
Polypeptide hormones secreted by the parathyroid glands, which promote release of calcium from bone to extracellular fluid by activating osteoblasts and inhibiting osteoclasts, indirectly promote increased intestinal absorption of calcium, and promote renal tubular reabsorption of calcium and increased renal excretion of phosphates. It is a major regulator of bone metabolism. Secretion of parathyroid hormone increases when the level of calcium in the extracellular fluid is low. Its action is opposed by calcitonin.
PTH (7-34), which is a PTH/PTHrP receptor antagonist, can stimulate hair growth and epidermal proliferation in mice.
Synonyms
PTH/PTHrP receptor antagonist, PTHrP analog, PTHR, MGC138426, MGC138452.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Parathyrin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution PTH 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 PTH in sterile 18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
LMHNLGKHLN SMERVEWLRK KLQDVHNF.

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:

CTLA4 Human Recombinant, igG-His Tag, Active

CTLA4, ALPS5, CD, CD152, CELIAC3, CTLA-4, GRD4, GSE, IDDM12, CD152, Cytotoxic T-Lymphocyte Associated Antigen-4, igG-His Tag.

Product # :

CYT-1144

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Description

CTLA4 Human produced in Sf9 Baculovirus cells is a single, glycosylated polypeptide chain containing 368 amino acids (36-161aa) and having a molecular mass of 40.8kDa.CTLA4 is fused to a 242 amino acid hIgG-His-Tag at C-terminus and purified by proprietary chromatographic techniques.

Source

Sf9, Baculovirus cells.

Formulation

The CTLA4 solution (0.5mg/ml) contains 10% Glycerol and Phosphate-Buffered Saline (pH 7.4).

Purity

Greater than 95.0% as determined by SDS-PAGE.

Biological Activity

Determined by the IL-2 ELISA in a using Jurkat human acute T cell leukemia cells. ED50 range for this is ≤ 150 ng/ml with Human B7 1/CD80.

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Introduction
Cytotoxic T-lymphocyte-associated protein 4 or CTLA4 or CD152 is a receptor that takes part in the immune checkpoint and inhibits immune response. This protein is fundamentally found in regulatory T cells; however, it acts as an enhancer in regular T cells following its activation, this is eminent in cancers. CTLA4 bounds to CD80 or CD86 on the membrane of antigen presenting cells and downregulates transductions.
Synonyms
CTLA4, ALPS5, CD, CD152, CELIAC3, CTLA-4, GRD4, GSE, IDDM12, CD152, Cytotoxic T-Lymphocyte Associated Antigen-4, igG-His Tag.
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
ADLKAMHVAQ PAVVLASSRG IASFVCEYAS PGKATEVRVT VLRQADSQVT EVCAATYMMG
NELTFLDDSI CTGTSSGNQV NLTIQGLRAM DTGLYICKVE LMYPPPYYLG IGNGTQIYVI
DPEPCPDSDL EPKSCDKTHT CPPCPAPELL GGPSVFLFPP KPKDTLMISR TPEVTCVVVD
VSHEDPEVKF NWYVDGVEVH NAKTKPREEQ YNSTYRVVSV LTVLHQDWLN GKEYKCKVSN
KALPAPIEKT ISKAKGQPRE PQVYTLPPSR DELTKNQVSL TCLVKGFYPS DIAVEWESNG
QPENNYKTTP PVLDSDGSFF LYSKLTVDKS RWQQGNVFSC SVMHEALHNH YTQKSLSLSP GKHHHHHH
Background
What is the molecular weight/Mw of CTLA4 Protein?
CTLA4 Protein has a total Mw of 40.8kDa.

What is the source or expression system of CTLA4 Protein?
Sf9, Baculovirus cells.

What is the Purity of CTLA4 Protein?
CTLA4 Protein is >95% pure as determined by SDS-PAGE.

What is the Biological Activity of CTLA4 Protein?
Determined by the IL-2 ELISA in a using Jurkat human acute T cell leukemia cells. ED50 range for this is ≤ 150 ng/ml with Human B7 1/CD80.

What is the amino acid sequence of CTLA4 Protein?
ADLKAMHVAQ PAVVLASSRG IASFVCEYAS PGKATEVRVT VLRQADSQVT EVCAATYMMG
NELTFLDDSI CTGTSSGNQV NLTIQGLRAM DTGLYICKVE LMYPPPYYLG IGNGTQIYVI
DPEPCPDSDL EPKSCDKTHT CPPCPAPELL GGPSVFLFPP KPKDTLMISR TPEVTCVVVD
VSHEDPEVKF NWYVDGVEVH NAKTKPREEQ YNSTYRVVSV LTVLHQDWLN GKEYKCKVSN
KALPAPIEKT ISKAKGQPRE PQVYTLPPSR DELTKNQVSL TCLVKGFYPS DIAVEWESNG
QPENNYKTTP PVLDSDGSFF LYSKLTVDKS RWQQGNVFSC SVMHEALHNH YTQKSLSLSP GKHHHHHH

What applications can CTLA4 Protein be used in?
CTLA4 Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for CTLA4 Protein?
The endotoxin level is minimal, CTLA4 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:

Neurocalcin Delta Recombinant Human

Rocalcin Delta, MGC33870, MGC74858, Neurocalcin-Delta.

Product # :

PRO-093

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Description

NCALD produced in E.Coli is a single, non-glycosylated polypeptide chain containing 213 amino acids (1-193.a.a) and having a molecular mass of 24.4kDa. NCALD is fused to a 20 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The NCALD protein solution (0.5mg/1ml) is formulated in 20 mM Tris-HCl buffer (pH8.0), 100mM NaCl, 1mM DTT and 40% glycerol.

Purity

Greater than 90% as determined by SDS-PAGE.

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Introduction
NCALD belongs to the neuronal calcium sensor (NCS) family. NCALD is cytosolic at inactive calcium levels; but, high intracellular calcium levels induce a conformational transformation which exposes the myristoyl group, causing protein association with membranes and partial co-localization with the perinuclear trans-golgi network. NCALD protein is a regulator of signal transduction by G protein-coupled receptor.
Synonyms
Rocalcin Delta, MGC33870, MGC74858, Neurocalcin-Delta.
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.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please avoid freeze thaw cycles.
Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MGKQNSKLRP EVMQDLLEST DFTEHEIQEW YKGFLRDCPS GHLSMEEFKK IYGNFFPYGD ASKFAEHVFR TFDANGDGTI DFREFIIALS VTSRGKLEQK LKWAFSMYDL DGNGYISKAE MLEIVQAIYK MVSSVMKMPE DESTPEKRTE KIFRQMDTNR DGKLSLEEFI RGAKSDPSIV RLLQCDPSSA GQF.

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:

Lipocalin-1 Human Recombinant

Lipocalin-1, PMFA, TLC, TP, VEGP, Tear lipocalin, Tear prealbumin, Von Ebner gland protein, VEG protein.

Product # :

ENZ-825

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Description

LCN1 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 183 amino acids (19-176 a.a) and having a molecular mass of 20.1kDa. LCN1 is fused to a 25 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

LCN1 protein solution (1mg/ml) containing Phosphate buffered saline (pH7.4), 10% glycerol and 1mM DTT.

Purity

Greater than 90.0% as determined by SDS-PAGE.

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Introduction
Lipocalin-1 (LCN1) belongs to the lipocalin family of small secretory proteins. Lipocalins are extracellular transport proteins, which bind to various hydrophobic ligands. LCN1 protein is the principal lipid binding protein in tears and is overproduced in response to numerous stimuli including infection and stress. LCN1 is a marker for chromosome aneuploidy as well as an autoantigen in Sjogren's syndrome.
Synonyms
Lipocalin-1, PMFA, TLC, TP, VEGP, Tear lipocalin, Tear prealbumin, Von Ebner gland protein, VEG protein.
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 MGSHMHHLLA SDEEIQDVSG TWYLKAMTVD REFPEMNLES VTPMTLTTLE GGNLEAKVTM LISGRCQEVK AVLEKTDEPG KYTADGGKHV AYIIRSHVKD HYIFYCEGEL HGKPVRGVKL VGRDPKNNLE ALEDFEKAAG ARGLSTESIL IPRQSETCSP GSD.

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:

B and T Lymphocyte Associated Mouse Recombinant

B- and T-lymphocyte attenuator, B- and T-lymphocyte-associated protein, CD272, B And T Lymphocyte Associated, B- And T-Lymphocyte-Associated Protein, B- And T, Lymphocyte Attenuator, CD272 Antigen, BTLA1

Product # :

PRO-2715

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Description

BTLA Mouse Recombinant produced in HEK293 Cells is a single, glycosylated polypeptide chain containing 390 amino acids (30-176 a.a) and having a molecular mass of 44.1 kDa.BTLA is fused to a 239 amino acid hIgG-His-Tag at C-terminus & purified by proprietary chromatographic techniques.

Source

HEK293 Cells

Formulation

The BTLA solution (0.25mg/1ml) contains phosphate buffered saline (pH7.4) and 10% glycerol.

Purity

Greater than 95.0% as determined by SDS-PAGE.

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Introduction
BTLA, also known as B & T Lymphocyte Associated, is an inhibitory molecule which is part of the Ig superfamily. BTLA is a type 1 transmembrane glycoprotein in the CD28 family of T cell costimulatory molecules. BTLA is a 3rd inhibitory receptor on T lymphocytes with resemblances to CTLA-4 & PD-1. Moreover, BTLA is a ligand for TNF (receptor) superfamily, TNFRSF14, and HVEM. BTLA-HVEM complexes negatively regulate T-cell immune responses.
Synonyms
B- and T-lymphocyte attenuator, B- and T-lymphocyte-associated protein, CD272, B And T Lymphocyte Associated, B- And T-Lymphocyte-Associated Protein, B- And T, Lymphocyte Attenuator, CD272 Antigen, BTLA1
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
DGSMEKATKR NDEECEVQLN IKRNSKHSAW TGELFKIECP VKYCVHRPNV TWCKHNGTIW VPLEVGPQLY TSWEENRSVP VFVLHFKPIH LSDNGSYSCS TNFNSQVINS HSVTIHVRER TQNSSEHPLI ISDIPDATNA SGPSTMEKRP GLEPKSCDKT HTCPPCPAPE LLGGPSVFLF PPKPKDTLMI SRTPEVTCVV VDVSHEDPEV KFNWYVDGVE VHNAKTKPRE EQYNSTYRVV SVLTVLHQDW LNGKEYKCKV SNKALPAPIE KTISKAKGQP REPQVYTLPP SRDELTKNQV SLTCLVKGFY PSDIAVEWES NGQPENNYKT TPPVLDSDGS FFLYSKLTVD KSRWQQGNVF SCSVMHEALH NHYTQKSLSL SPGKHHHHHH

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:

Lysozyme G-Like 2 Human Recombinant

Lysozyme G-Like 2, Lysozyme G-Like Protein 2, LYGH, EC 3.2.1.-.

Product # :

PRO-1245

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Description

LYG2 Human Recombinant produced in E. coli is a single polypeptide chain containing 216 amino acids (20-212) and having a molecular mass of 23.9 kDa. LYG2 is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

Source

E.coli.

Formulation

The LYG2 solution (0.5mg/1ml) contains 20mM Tris-HCl buffer (pH 8.0), 0.2M NaCl, 1mM DTT and 20% glycerol.

Purity

Greater than 90% as determined by SDS-PAGE.

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Introduction
lysozyme G-like 2 and LYGH (LYG2), is a member of the glycosyl hydrolase 23 family. Lysozyme takes part in human innate immunity by causing bacterial cell lysis. LYG2 contains a SLT domain, a protein domain present in bacterial lytic transglycosylase (SLT) and in eukaryotic lysozymes (GEWL). SLT domain catalyzes the cleavage of the beta-1,4-glycosidic bond between N-acetylmuramic acid (MurNAc) and N-acetyglucosamine (GlcNAc).
Synonyms
Lysozyme G-Like 2, Lysozyme G-Like Protein 2, LYGH, EC 3.2.1.-.
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 MGSSYPFSHS MKPHLHPRLY HGCYGDIMTM KTSGATCDAN SVMNCGIRGS EMFAEMDLRA IKPYQTLIKE VGQRHCVDPA VIAAIISRES HGGSVLQDGW DHRGLKFGLM QLDKQTYHPV GAWDSKEHLS QATGILTERI KAIQKKFPTW SVAQHLKGGL SAFKSGIEAI ATPSDIDNDF VNDIIARAKF YKRQSF.

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:

Clathrin, Light Chain A Human Recombinant

Clathrin light chain A, Lca, CLTA.

Product # :

PRO-1144

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Description

CLTA Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 242 amino acids (1-218 a.a) and having a molecular mass of 26.2kDa (Molecular weight on SDS-PAGE will appear higher).CLTA is fused to a 24 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

CLTA protein solution (1mg/ml) containing 20mM Tris-HCl buffer (pH 8.0), 0.1M NaCl and 10% glycerol.

Purity

Greater than 90.0% as determined by SDS-PAGE.

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Introduction
Clathrin, light chain A (CLTA) is a member of the clathrin family. Clathrin, which is a large, soluble protein, is comprised of heavy and light chains. CLTA is one of 2 clathrin light chain proteins which are supposed to function as regulatory elements. CLTA is a key cytosolic coat protein in pits and vesicles originating from the plasma membrane and the trans-Golgi network. In receptor-mediated endocytosis, receptor proteins are encapsulated by Clathrin-coated vesicles.
Synonyms
Clathrin light chain A, Lca, CLTA.
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 MGSHMAELDP FGAPAGAPGG PALGNGVAGA GEEDPAAAFL AQQESEIAGI ENDEAFAILD GGAPGPQPHG EPPGGPDAVD GVMNGEYYQE SNGPTDSYAA ISQVDRLQSE PESIRKWREE QMERLEALDA NSRKQEAEWK EKAIKELEEW YARQDEQLQK
TKANNRAAEE AFVNDIDESS PGTEWERVAR LCDFNPKSSK QAKDVSRMRS VLISLKQAPL VH.

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:

Glycogenin-1 Human Recombinant

Glycogenin-1, GYG1, GYG.

Product # :

ENZ-431

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Description

GYG1 Human Recombinant fused with a 32 amino acid His-T7 tag at N-terminus produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 365 amino acids (1-333 a.a.) and having a molecular mass of 41.2kDa.The GYG1 is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The GYG1 solution contains 20mM Tris-HCl buffer (pH 8.0), 1mM DTT and 10% glycerol.

Purity

Greater than 90.0% as determined by SDS-PAGE.

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Introduction
Glycogenin-1 (GYG1) is an enzyme involved in glycogen biosynthesis. GYG1 is the chief enzyme involved in glycogen polymerisation. Glycogenin-1 is vital for the function of self-glucosylates, using an inter-subunit mechanism, to form an oligosaccharide primer which acts as substrate for glycogen synthase. In addition, GYG1 has a role in regulating glycogen metabolism and the achievement of maximal glycogen levels in skeletal muscle. GYG1 mRNA and protein content and activity increase in the muscle during recovery from prolonged and exhaustive exercise. GYG1 is inactivated with glycogen catabolism which concurs with an increase in glycogenin gene expression as exercise and glycogenolysis advance. Glycogenin will remain covalently attached to the reducing end of the glycogen molecule.
Synonyms
Glycogenin-1, GYG1, GYG.
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
MHHHHHHMAS MTGGQQMGRD LYDDDDKDRW GSMTDQAFVT LTTNDAYAKG ALVLGSSLKQ HRTTRRLVVL ATPQVSDSMR KVLETVFDEV IMVDVLDSGD SAHLTLMKRP ELGVTLTKLH CWSLTQYSKC VFMDADTLVL ANIDDLFDRE ELSAAPDPGW PDCFNSGVFV YQPSVETYNQ LLHLASEQGS FDGGDQGILN TFFSSWATTD IRKHLPFIYN LSSISIYSYL PAFKVFGASA KVVHFLGRVK PWNYTYDPKT KSVKSEAHDP NMTHPEFLIL WWNIFTTNVL PLLQQFGLVK DTCSYVNVED VSGAISHLSL GEIPAMAQPF VSSEERKERW EQGQADYMGA DSFDNIKRKL DTYLQ.

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:

Anti Human Procalcitonin Paired Antibody Mouse

Product # :

ANT-784

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Description

Procalcitonin Paired monoclonal antibodies are used to develop rapid test for PCT rapid test. Please note that when ordering for example: 100µg paired antibody, you receive 50µg from each antibody (100µg in total).

Formulation

*PCT conjugation antibody in PBS, NaCl and 0.095% NaN3.

* PCT coating antibody in PBS, NaCl and 0.095% NaN3.

Purity

Greater than 95%.

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Physical Appearance
2 vials of sterile Filtered clear colorless solution.
Stability
For periods up to 1 month PCT Paired Antibody should be stored at 4°C, for longer periods of time, store at -20°C. Prevent freeze thaw cycles.
Applications
Lateral flow immunoassay.
Background
Procalcitonin is a hormone mostly produced by the C cells of the thyroid and specific endocrine cells of the lung. Under normal expression conditions, procalcitonin is immediately cleaved into 3 specific fragments, an N terminal residue, katacalcin and calcitonin. Levels of unprocessed procalcitonin rise drastically after bacterial infection or shock.
Type
Mouse antibody Monoclonal.
Purification Method
Purified monoclonal IgG1 by protein A chromatography.

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:

Tyr-3/Trp-5 Monooxygenase Activation Protein Gamma Human Recombinant, His Tag

14-3-3 protein gamma, Protein kinase C inhibitor protein 1, KCIP-1, YWHAG, Tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein, gamma polypeptide.

Product # :

PKA-262

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Description

YWHAG Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 246 amino acids (2-247) and having a molecular mass of 36 kDa. YWHAG is fused to His Tag and purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

YWHAG solution containing 1x PBS and 50% glycerol.

Purity

Greater than 95.0% as determined by SDS-PAGE.

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Introduction
The 14-3-3 family of proteins plays a key regulatory role in signal transduction, checkpoint control, apoptotic and nutrient-sensing pathways. 14-3-3 proteins are highly conserved and ubiquitously expressed. There are at least seven isoforms that have been identified in mammals. The 14-3-3gamma, a subtype of the 14-3-3 family of proteins, was thought to be brain and neuron-specific. It has been shown to interact with RAF1 and protein kinase C, proteins involved in various signal transduction pathways.
Synonyms
14-3-3 protein gamma, Protein kinase C inhibitor protein 1, KCIP-1, YWHAG, Tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein, gamma polypeptide.
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. Avoid multiple freeze-thaw cycles.

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:

Liraglutide

Product # :

HOR-028

Price :

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Shipping Method :

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HPLC, MS

Description

Liraglutide peptide is a single, non-glycosylated polypeptide chain containing 31 amino acids, having a molecular mass of 3751 Dalton and a Molecular formula of C172H265N43O51.

Formulation

The protein (1mg/ml) was lyophilized with no additives.

Purity

Greater than 97% as determined by RP-HPLC.

HPLC, MS

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Introduction
Liraglutide is a long-acting GLP1 analogue sharing 97% a.a. homology to human GLP1. Liraglutide differs from GLP1 by the substitution of arginine for lysine at position 34. While GLP1 is degraded swiftly by DPP4 resulting in short life of insulin, Liraglutide contains a fatty acid that binds to albumin and prolongs the half-life of the structure. liraglutide causes insulin to secret in the presence of increasing glucose levels. Due toits receptor site, liraglutide inhibits glucagon secretion and delays gastric emptying.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Store the lyophilized Liraglutide between 2-8°C, do not freeze. Upon reconstitution Lypressin should be stored at 4°C between 2-7 days and for future use below -18°C. Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized Liraglutide in sterile 18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.
Lypressin is also soluble in 1% Acetic Acid.
Amino Acid Sequence
H-His-Ala-Glu-Gly-Thr-Phe-Thr-Ser-Asp-Val-Ser-Ser-Tyr-Leu-Glu-Gly-Gln-Ala-Ala-Lys(γ-Glu-palmitoyl)-Glu-Phe-Ile-Ala-Trp-Leu-Val-Arg-Gly-Arg-Gly-OH

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:

Ghrelin Human Recombinant

Appetite-regulating hormone precursor, Growth hormone secretagogue, Growth hormone-releasing peptide, GHRP, Motilin-related peptide, M46 protein, Ghrelin, Obestatin, MTLRP.

Product # :

HOR-294

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Description

Ghrelin Human Recombinant contains 115 amino acids (24-117 a.a.) and a total molecular mass of 12.8 kDa. The GHRL is fused to a 20 amino acid His Tag at N-terminus and purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The Ghrelin protein solution contains 20mM Tris-HCl, pH-8 & 10% glycerol.

Purity

Greater than 90.0% as determined by SDS-PAGE.

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Introduction
Obestatin is a hormone that is produced in the cells lining the stomach and small intestine of several mammals including humans; it drastically reduces appetite in mice and is expected to do the same in humans. Obestatin is a peptide hormone - a relatively small protein. It is encoded by the same gene that also encodes ghrelin, a peptide hormone that increases appetite. The protein produced by that gene breaks into two smaller peptides, ghrelin and obestatin. Ghrelin is an endogenous ligand for the growth hormone secretagogue receptor and is involved in regulating growth hormone release. Ghrelin is derived from a preprohormone called preproghrelin, which also generates a second peptide called obestatin. Ghrelin is an endogenous ligand for the orphan G protein-coupled receptor GPR39 and is involved in satiety and decreased food intake.
Synonyms
Appetite-regulating hormone precursor, Growth hormone secretagogue, Growth hormone-releasing peptide, GHRP, Motilin-related peptide, M46 protein, Ghrelin, Obestatin, MTLRP.
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 MGSSFLSPEH QRVQQRKESK KPPAKLQPRA LAGWLRPEDG GQAEGAEDEM EVRFNAPFDV GIKLSGVQYQ QHSQALGKFL QDILWEEAKE APADK.
Background
What is the molecular weight/Mw of GHRELIN HUMAN Protein?
GHRELIN HUMAN Protein has a total Mw of 12.8kDa.

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

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

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

What is the amino acid sequence of GHRELIN HUMAN Protein?
MGSSHHHHHH SSGLVPRGSH MGSSFLSPEH QRVQQRKESK KPPAKLQPRA LAGWLRPEDG GQAEGAEDEM EVRFNAPFDV GIKLSGVQYQ QHSQALGKFL QDILWEEAKE APADK.

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

What is the endotoxin level for GHRELIN HUMAN Protein?
The endotoxin level is minimal, GHRELIN 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:

Lymphotactin Human Recombinant (XCL1)

XCL1, Cytokine SCM-1, ATAC, Lymphotaxin, SCM-1-alpha, Small inducible cytokine C1, XC chemokine ligand 1, LTN, LPTN, SCM1, SCM-1, SCYC1, SCM-1a.

Product # :

CHM-314

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Description

Lymphotactin Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 92 amino acids and having a molecular mass of 10007 Dalton. The Lymphotactin is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The XCL1 was lyophilized from a concentrated (1mg/ml) solution in water containing no additives.

Purity

Greater than 99.0% as determined by:
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.

Biological Activity

The Biological activity is calculated by its ability to chemoattract human T cells at 10-100ng/ml corresponding to a Specific Activity of 10,000-100,000IU/mg.

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Introduction
Chemokine (C motif) ligand (XCL1) is a small cytokine belonging to the XC chemokine family that is also known as lymphotactin. It is found in high levels in spleen, thymus, intestine and peripheral blood leukocytes, and at lower levels in lung, prostate gland and ovary. Cellular sources for XCL1 include activated thymic and peripheral blood CD8+ T cells. This chemokine attracts T cells. In humans, XCL1 is closely related to another chemokine called XCL2, whose geneis found at the same locus on chromosome 1. XCL1 induces it chemotactic function by binding to a chemokine receptor called XCR1.
Synonyms
XCL1, Cytokine SCM-1, ATAC, Lymphotaxin, SCM-1-alpha, Small inducible cytokine C1, XC chemokine ligand 1, LTN, LPTN, SCM1, SCM-1, SCYC1, SCM-1a.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Lymphotactin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution XCL1 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 avoid freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized Lymphotactin in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
The sequence of the first five N-terminal amino acids was determined and was found to be Gln-Ser-Glu-Val-Ser.

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:

Pentagastrin

Product # :

HOR-045

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Description

Pentagastrin Synthetic is a single, non-glycosylated polypeptide chain containing 5 amino acids, having a molecular mass of 768 Dalton and a Molecular formula of C37H49N7O9S .

Formulation

The protein was lyophilized with no additives.

Purity

Greater than 97.0% as determined by analysis by RP-HPLC.

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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Pentagastrin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Pentagastrin 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 Pentagastrin in sterile 18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
Boc-β-Ala-Trp-Met-Asp-Phe-NH2.
Background
Pentagastrin is a synthetic peptide that has long been recognized for its significant influence on gastric physiology. Its ability to stimulate gastric acid secretion and regulate various aspects of gastrointestinal function has made it a valuable tool in both basic research and clinical practice.
This research aims to comprehensively investigate the multifaceted effects of pentagastrin on the gastrointestinal system, shedding light on its mechanisms of action and potential clinical applications.
The primary objective of this study is to elucidate the mechanisms underlying pentagastrin-induced gastric acid secretion.
In vitro experiments using isolated gastric cells or tissue preparations will be conducted to explore the signaling pathways activated by pentagastrin. This will include investigations into the role of intracellular messengers, such as cyclic AMP (cAMP), calcium ions (Ca2+), and protein kinases, in mediating the secretory response.
The second objective is to assess the impact of pentagastrin on gastrointestinal motility. In vivo studies using animal models or human volunteers will be employed to investigate its effects on gastric emptying, intestinal transit, and colonic motility. These experiments may provide insights into the potential use of pentagastrin in the management of gastrointestinal motility disorders.
The third objective is to explore the clinical applications of pentagastrin. Clinical trials and studies involving human subjects will be conducted to evaluate its potential therapeutic uses, such as in the diagnosis and treatment of gastric acid-related disorders, including peptic ulcers and gastroesophageal reflux disease (GERD). Additionally, the safety and efficacy of pentagastrin as an adjunct to medical imaging techniques, such as gastric scintigraphy, will be examined.
By investigating the diverse effects of pentagastrin on the gastrointestinal system, this research aims to enhance our understanding of gastric physiology and its clinical relevance. The findings may lead to improved diagnostic and therapeutic strategies for gastrointestinal disorders, ultimately benefiting patients affected by these conditions.

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:

Sex Hormone-Binding Globulin Human

Sex hormone-binding globulin, SHBG, Sex steroid-binding protein, SBP, Testis-specific androgen-binding protein, ABP, Testosterone-estradiol-binding globulin, TeBG, Testosterone-estrogen-binding globulin, SHBG.

Product # :

PRO-2757

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Description

SHBG is a protein of approximately 45kD.

Source

Human serum.

Formulation

The protein is supplied in 0.01M HEPES, PH 7.4 and 0.15M NaCl.

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Introduction
Sex-hormone-binding globulin (SHBG) is a beta-globulin which specifically binds steroid hormones; it is involved in the transport of sex steroids in plasma. The main site of SHBG synthesis is assumed to be the hepatocytes. The production of SHBG is regulated by androgen/estrogen balance, thyroid hormones, insulin and dietary factors, among others. The concentration of SHBG is a key factor regulating their distribution between protein-bound and free states. SHBG concentration determination is primarily significant in the evaluation of mild disorders of androgen metabolism and it allows detection of women with hirsutism who are likely to react to estrogen therapy. Testosterone/SHBG-ratios correlate well with both measured and calculated values for free testosterone thus aid to distinguish between subjects with excessive androgen activity and normal individuals. SHBG gene polymorphisms are linked with polycystic ovary syndrome and type 2 diabetes mellitus.
Synonyms
Sex hormone-binding globulin, SHBG, Sex steroid-binding protein, SBP, Testis-specific androgen-binding protein, ABP, Testosterone-estradiol-binding globulin, TeBG, Testosterone-estrogen-binding globulin, SHBG.
Physical Appearance
Streile filtered colorless solution.
Stability
Upon arrival, Store at -20°C. Please prevent freeze-thaw cycles.
Human Virus Test
FDA approved Plasma from each donor has been tested and found negative for antibodies to HIV-1 & 2, HCV, HBsAG, Parvovirus B19, HBc, HBV, HIV and Syphilis.

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:

Angiopoietin-like Protein 4 Human Recombinant, HEK

ANGPTL4, NL2, ARP4, FIAF, PGAR, HFARP, pp1158, ANGPTL2, Fasting- Induced Adipose Factor, Hepatic Fibrinogen/Angiopoietin-Related Protein, PPARG Angiopoietin-Related Protein.

Product # :

CYT-698

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Description

The ANGPTL4 Human Recombinant is manufactured with C-terminal fusion of 11 amino acid FLAG Tag. The ANGPTL4 Flag -Tagged Fusion Protein is a 44.2kDa protein containing 392 amino acid residues of the Angiopoietin-like Protein 4 and 11 additional amino acid residues - Flag Tag (underlined).

Source

HEK293.

Formulation

Filtered and lyophilized from 0.5mg/ml in 20mM Tris buffer and 50mM NaCl pH-7.5.

Purity

Greater than 90% as determined by SDS-PAGE.

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Introduction
The fasting-induced adipose factor (FIAF, ANGPTL4, PGAR, HFARP) was identified as an adipocytokine up-regulated by fasting, by peroxisome proliferator-activated receptor agonists, and by hypoxia. At the protein level, in human and mouse blood plasma, FIAF was found to be present both as a native protein and in a truncated form. Differentiation of mouse 3T3-L1 adipocytes was associated with the production of truncated FIAF, whereas in human white adipose tissue and SGBS adipocytes, only the native FIAF could be detected. Interestingly, the truncated FIAF was produced by human liver.
Experimental data suggest that FIAF is mainly presented in human blood plasma in a truncated form (FIAF-S2), whose level is increased by fenofibrate treatment. Levels of both truncated and native FIAF showed marked inter individual variation but were not associated with body mass index and were not influenced by prolonged semistarvation.
Synonyms
ANGPTL4, NL2, ARP4, FIAF, PGAR, HFARP, pp1158, ANGPTL2, Fasting- Induced Adipose Factor, Hepatic Fibrinogen/Angiopoietin-Related Protein, PPARG Angiopoietin-Related Protein.
Physical Appearance
Filtered White lyophilized (freeze-dried) powder.
Stability
Store lyophilized Angiopoietin-like Protein 4 Human recombinant 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
Add pyrogen free water to a working concentration of 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 in the cell culture.
Amino Acid Sequence
GPVQSKSPRF ASWDEMNVLA HGLLQLGQGL REHAERTRSQ LSALERRLSA CGSACQGTEG STDLPLAPES RVDPEVLHSL QTQLKAQNSR IQQLFHKVAQ QQRHLEKQHL RIQHLQSQFG LLDHKHLDHE VAKPARRKRL PEMAQPVDPA HNVSRLHRLP RDCQELFQVG ERQSGLFEIQ PQGSPPFLVN CKMTSDGGWT VIQRRHDGSV DFNRPWEAYK AGFGDPHGEF WLGLEKVHSI TGDRNSRLAV QLRDWDGNAE LLQFSVHLGG EDTAYSLQLT APVAGQLGAT TVPPSGLSVP FSTWDQDHDL RRDKNCAKSL SGGWWFGTCS HSNLNGQYFR SIPQQRQKLK KGIFWKTWRG RYYPLQATTM LIQPMAAEAA SAAADYKDDDDK.
Applications
Western blotting.
Background
What is the molecular weight/Mw of ANGPTL4 Protein?
ANGPTL4 Protein has a total Mw of 44.2kDa.

What is the source or expression system of ANGPTL4 Protein?
HEK293.

What is the Purity of ANGPTL4 Protein?
ANGPTL4 Protein is >90% pure as determined by SDS-PAGE.

What is the Biological Activity of ANGPTL4 Protein?
The biological functionality of ANGPTL4 Protein will be determined in the future.

What is the amino acid sequence of ANGPTL4 Protein?
GPVQSKSPRF ASWDEMNVLA HGLLQLGQGL REHAERTRSQ LSALERRLSA CGSACQGTEG STDLPLAPES RVDPEVLHSL QTQLKAQNSR IQQLFHKVAQ QQRHLEKQHL RIQHLQSQFG LLDHKHLDHE VAKPARRKRL PEMAQPVDPA HNVSRLHRLP RDCQELFQVG ERQSGLFEIQ PQGSPPFLVN CKMTSDGGWT VIQRRHDGSV DFNRPWEAYK AGFGDPHGEF WLGLEKVHSI TGDRNSRLAV QLRDWDGNAE LLQFSVHLGG EDTAYSLQLT APVAGQLGAT TVPPSGLSVP FSTWDQDHDL RRDKNCAKSL SGGWWFGTCS HSNLNGQYFR SIPQQRQKLK KGIFWKTWRG RYYPLQATTM LIQPMAAEAA SAAADYKDDDDK.

What applications can ANGPTL4 Protein be used in?
ANGPTL4 Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for ANGPTL4 Protein?
The endotoxin level is minimal, ANGPTL4 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:

Annexin A1 Human Recombinant

ANX1, LPC1, ANXA1, Lipocortin I, Calpactin II, Chrombindin-9, p35, Annexin-1, Phospholipase A2 inhibitory protein, Annexin I, Annexin A1.

Product # :

PRO-679

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Description

ANXA1 produced in E.Coli is a single, non-glycosylated polypeptide chain containing 346 amino acids (1-346 a.a.) and having a molecular mass of 38.7 kDa.ANXA1 is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The ANXA1 protein solution contains 20mM Tris-HCl, pH-8, 100mM NaCl, 1mM DTT and 10% glycerol.

Purity

Greater than 90.0% as determined by SDS-PAGE.

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Introduction
ANXA1 is part of the family of Ca(2+)-dependent phospholipid binding proteins which have a Mw between 35kDa-40kDa and are situated on the cytosolic face of the plasma membrane. ANXA1 protein has a Mw of 40kDa, with phospholipase A2 inhibitory activity to bind from two to four calcium ions with high affinity. Since phospholipase A2 is necessary for the biosynthesis of the potent mediators of inflammation, prostaglandins and leukotrienes, ANXA1 might have potential anti-inflammatory activity. ANXA1 promotes membrane fusion and iplays a role in exocytosis. The recognition of ANXA1 protein by immunocytochemical leads a simple, highly sensitive and specific assay for diagnosis of hairy cell leukemia.
Synonyms
ANX1, LPC1, ANXA1, Lipocortin I, Calpactin II, Chrombindin-9, p35, Annexin-1, Phospholipase A2 inhibitory protein, Annexin I, Annexin A1.
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
MAMVSEFLKQ AWFIENEEQE YVQTVKSSKG GPGSAVSPYP TFNPSSDVAA LHKAIMVKGV DEATIIDILT KRNNAQRQQI KAAYLQETGK
PLDETLKKAL TGHLEEVVLA LLKTPAQFDA DELRAAMKGL GTDEDTLIEI LASRTNKEIR DINRVYREEL KRDLAKDITS DTSGDFRNAL
LSLAKGDRSE DFGVNEDLAD SDARALYEAG ERRKGTDVNV FNTILTTRSY PQLRRVFQKY TKYSKHDMNK VLDLELKGDI EKCLTAIVKCATSKPAFFAE KLHQAMKGVG TRHKALIRIM VSRSEIDMND IKAFYQKMYG ISLCQAILDE TKGDYEKILV ALCGGN.

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

FST, FS

Product # :

CYT-232

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Quantity :

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Description

Follistatin Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 288 amino acids and having a total molecular mass of 31.5kDa.The FST is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

Lyophilized from a concentrated (1mg/ml) solution containing no additives.

Purity

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

Biological Activity

The activity is determined by the ability to neutralize ACTV inhibitory effect of mouse MPC-11 cells. The expected ED50 is 100-400ng/ml, corresponding to a Specific Activity of 2,500-10,000units/mg in the presence of 7.5ng/ml ACTV A.

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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 functions as an ACTV antagonist. specific inhibitor of the biosynthesis and secretion of pituitary follicle stimulating hormone (fsh).
Synonyms
FST, FS
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Follistatin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution FST 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 Follistatin in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
The sequence of the first five N-terminal amino acids was determined and was found to be Gly-Asn-Cys-Trp-Leu.
Background
What is the molecular weight/Mw of FOLLISTATIN HUMAN Protein?
FOLLISTATIN HUMAN Protein has a total Mw of 31.5kDa.

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

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

What is the Biological Activity of FOLLISTATIN HUMAN Protein?
The activity is determined by the ability to neutralize ACTV inhibitory effect of mouse MPC-11 cells. The expected ED50 is 100-400ng/ml, corresponding to a Specific Activity of 2,500-10,000units/mg in the presence of 7.5ng/ml ACTV A.

What is the amino acid sequence of FOLLISTATIN HUMAN Protein?
The sequence of the first five N-terminal amino acids was determined and was found to be Gly-Asn-Cys-Trp-Leu.

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

What is the endotoxin level for FOLLISTATIN HUMAN Protein?
The endotoxin level is minimal, FOLLISTATIN 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:

Leptin Horse Recombinant

OB Protein, Obesity Protein, OBS, Obesity factor.

Product # :

CYT-504

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Quantity :

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Shipped at Room temp

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Description

Leptin Horse Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 146 amino acids and having a molecular mass of 16 kDa.The Leptin is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The protein was lyophilized from a concentrated (1mg/ml) solution with 0.0045mM NaHCO3.

Purity

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

Biological Activity

Biological active as evidenced by inducing proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor.

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Introduction
A 16-kDa peptide hormone secreted from white adipocytes and implicated in the regulation of food intake and energy balance. Leptin provides the key afferent signal from fat cells in the feedback system that controls body fat stores.
Synonyms
OB Protein, Obesity Protein, OBS, Obesity factor.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Leptin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Leptin 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 Leptin in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
The sequence of the first five N-terminal amino acids was determined and was found to be Ala-Val-Pro-Ile-Gln.
Protein content
Protein quantitation was carried out by two independent methods1. UV spectroscopy at 280 nm using the absorbency value of 0.1 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 calibrated solution of Leptin Horse 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:

Leptin Super Antagonist Rat Recombinant

Product # :

CYT-1240

Price :

Quantity :

Shipping Method :

Shipped at Room temp

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Description

Super Leptin Antagonist Rat Recombinant is a single polypeptide chain containing 146 amino acids. Super Rat Leptin Antagonist was mutated, resulting in D23L/L39A/D40A/F41A super Rat leptin antagonist that was purified by proprietary chromatographic techniques.

Source

Escherichia coli.

Formulation

The protein was lyophilized from a concentrated (1mg/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

ProSpec’s super Rat leptin antagonist is capable of inhibiting leptin-induced proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Super Rat leptin antagonist also inhibits various leptin effects in several in vitro bioassays.

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Physical Appearance
White lyophilized (freeze-dried) powder.
Stability
Lyophilized Super Leptin Antagonist although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution of super Rat leptin antagonist at > 0.1 mg/ml and up to 2 mg/ml and filter sterilization super Rat leptin antagonist can be stored at 4C 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 Super Leptin Antagonist 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 five N-terminal amino acids was determined and was found to be Ala-Val-Pro-Ile-His.
Background
Leptin is a hormone which takes part in regulating body weight, metabolism and reproductive function and is encoded by the obese gene. Leptin is expressed predominantly by adipocytes, which fits with the idea that body weight is sensed as the total mass of fat in the body. Smaller amounts of leptin are also secreted by cellsin the epithelium of the stomach and in the placenta. Leptin receptors are expressed mainly in areas of the hypothalamus which regulates body weight, as well as in T lymphocytes and vascular endothelial cells.

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:

Angiopoietin Like Protein 3 Human Recombinant

Angiopoietin 5, ANGPT5, ANGPTL3, Angiopoietin Like Protein 3.

Product # :

CYT-248

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Quantity :

Shipping Method :

Shipped at Room temp

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Description

The ANGPTL3 Human Recombinant is produced with N-terminal fusion of His-Tag. The Angiopoietin-like protein 3 His Tagged Fusion Protein is 26kDa containing 207 amino acid residues of the ANGPTL3 Human (26-233 a.a.) and 16 additional amino acid residues – His-Tag (underlined).

Source

Escherichia Coli.

Formulation

ANGPTL3 Human filtered and lyophilized from 0.5 mg/ml in 0.05M Acetate buffer pH-4.

Purity

Angiopoietin 5 purity is greater than 95% as determined by SDS-PAGE.

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Introduction
ANGPTL3 and ANGPTL4 are angiopoietin-like proteins secreted and expressed mainly by the liver, their role being the regulation of triglyceride metabolism by inhibiting the lipolysis of triglyceride-rich lipoproteins. During different nutritional states (feeding/fasting) the levels of the circulating triglycerides are regulated by Angptl3 and Angptl4 through differential inhibition of Lipoprotein lipase (LPL) as shown by the experimental data. The molecular structure of ANGPTL3 is similar to that of the angiopoietins (vascular endothelial growth factors). Deletion mutants of human Angiopoietin 5 were used in order to demonstrate that the N-terminal domain (fragment 17-207) and not the C-terminal fibrinogen-like domain (fragment 207-460) increased the plasma triglyceride levels in mice.
Synonyms
Angiopoietin 5, ANGPT5, ANGPTL3, Angiopoietin Like Protein 3.
Stability
Store lyophilized ANGPTL3 Human at -20°C. Aliquot the product after reconstitution to avoid repeated freezing/thawing cycles. Reconstituted Angiopoietin 5 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
Add 0.1M Acetate buffer pH-4 and let the lyophilized pellet of ANGPTL3 Human dissolve completely. For conversion into higher pH value, we recommend intensive dilution by relevant buffer to a concentration of 10μg/ml. In higher concentrations the solubility of Angiopoietin 5 is limited.
Amino Acid Sequence
MRGSHHHHHH GMASHMSRID QDNSSFDSLS PEPKSRFAML DDVKILANGL LQLGHGLKDF VHKTKGQIND IFQKLNIFDQ SFYDLSLQTS EIKEEEKELR RTTYKLQVKN EEVKNMSLEL NSKLESLLEE KILLQQKVKY LEEQLTNLIQ NQPETPEHPE VTSLKTFVEK QDNSIKDLLQ TVEDQYKQLN QQHSQIKEIE NQLRRTSIQE PTEISLSSKP RAP.
Background
Angiopoietin-Like Protein 3 Human Recombinant: An Emerging Target in Metabolic and Cardiovascular Disorders
Abstract:

Angiopoietin-like protein 3 (ANGPTL3) is a key regulator of lipid metabolism and has garnered considerable attention for its involvement in metabolic and cardiovascular disorders. ANGPTL3 plays a crucial role in lipid homeostasis, including the regulation of triglycerides, cholesterol, and lipoprotein metabolism. The availability of human recombinant ANGPTL3 protein has provided a valuable tool for investigating its biological functions and therapeutic potential. This review aims to provide a comprehensive overview of the role of ANGPTL3 in metabolic disorders, cardiovascular diseases, and lipid metabolism, highlighting the potential of ANGPTL3 human recombinant protein as a therapeutic target.
Introduction:

Metabolic disorders, such as dyslipidemia and obesity, significantly contribute to the development of cardiovascular diseases. ANGPTL3, a member of the angiopoietin-like protein family, has emerged as a key player in lipid metabolism and cardiovascular health. ANGPTL3 regulates lipoprotein metabolism, affecting triglyceride-rich lipoproteins, low-density lipoproteins (LDL), and high-density lipoproteins (HDL).
Molecular Mechanisms of ANGPTL3 Action:

ANGPTL3 exerts its effects through inhibition of lipoprotein lipase (LPL) and endothelial lipase (EL), key enzymes involved in lipoprotein metabolism. By inhibiting LPL and EL activities, ANGPTL3 increases plasma triglyceride and LDL cholesterol levels. ANGPTL3 also influences hepatic cholesterol metabolism and HDL metabolism through modulation of the receptor-mediated uptake of lipoproteins.
Role of ANGPTL3 in Metabolic Regulation:

ANGPTL3 plays a critical role in metabolic regulation, particularly in lipid metabolism and dyslipidemia. Loss-of-function mutations in the ANGPTL3 gene result in decreased plasma triglycerides, LDL cholesterol, and total cholesterol levels, highlighting the potential therapeutic relevance of ANGPTL3 inhibition. Conversely, elevated ANGPTL3 levels are associated with increased cardiovascular risk and atherogenic lipid profiles.
ANGPTL3 in Cardiovascular Health and Disease:

ANGPTL3 has emerged as a key modulator of cardiovascular diseases, including atherosclerosis and coronary artery disease. ANGPTL3 influences vascular endothelial function, inflammation, and plaque formation through its effects on lipoprotein metabolism and lipid accumulation. Inhibition of ANGPTL3 has shown promising results in preclinical studies, reducing atherosclerosis and improving cardiovascular outcomes.
Therapeutic Potential of ANGPTL3 Human Recombinant Protein:

The development of ANGPTL3 human recombinant protein provides a novel avenue for therapeutic interventions targeting metabolic and cardiovascular disorders. Inhibition of ANGPTL3 using monoclonal antibodies or other approaches has demonstrated efficacy in lowering plasma lipid levels, particularly triglycerides and LDL cholesterol. Clinical trials investigating the safety and efficacy of ANGPTL3 inhibition are underway.
Conclusion:

ANGPTL3 is a key regulator of lipid metabolism and a promising therapeutic target for metabolic and cardiovascular disorders. The availability of ANGPTL3 human recombinant protein has facilitated in-depth investigations into its biological functions and therapeutic potential. Targeting ANGPTL3 holds promise for improving lipid profiles, reducing cardiovascular risk, and managing metabolic disorders.
What is the molecular weight/Mw of ANGPTL3 Protein?
ANGPTL3 Protein has a total Mw of 26kDa.

What is the source or expression system of ANGPTL3 Protein?
Escherichia Coli.

What is the Purity of ANGPTL3 Protein?
ANGPTL3 Protein is >95% pure as determined by SDS-PAGE.

What is the Biological Activity of ANGPTL3 Protein?
The biological functionality of ANGPTL3 Protein will be determined in the future.

What is the amino acid sequence of ANGPTL3 Protein?
MRGSHHHHHH GMASHMSRID QDNSSFDSLS PEPKSRFAML DDVKILANGL LQLGHGLKDF VHKTKGQIND IFQKLNIFDQ SFYDLSLQTS EIKEEEKELR RTTYKLQVKN EEVKNMSLEL NSKLESLLEE KILLQQKVKY LEEQLTNLIQ NQPETPEHPE VTSLKTFVEK QDNSIKDLLQ TVEDQYKQLN QQHSQIKEIE NQLRRTSIQE PTEISLSSKP RAP.

What applications can ANGPTL3 Protein be used in?
ANGPTL3 Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for ANGPTL3 Protein?
The endotoxin level is minimal, ANGPTL3 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 Antagonist Triple Mutant Pegylated Mouse Recombinant

Product # :

CYT-566

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Description

Leptin Antagonist Triple Mutant Mouse Recombinant is a single non-glycosilated polypeptide chain containing 146 amino and additional Ala at N-terminus acids and having a molecular mass of ~ 16 kDa.The Mouse 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 Mouse Recombinant half-life in circulation after SC injection was over 20 hours.
Leptin Antagonist Triple Mutant Mouse Recombinant is capable of inhibiting leptin-induced proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Leptin Antagonist Triple Mutant Mouse Recombinant in vitro activity is 5-6 fold lower than the non-pegylated antagonist, though in vivo it has profound weight gain effect (as compared to the non-pegylated antagonist), resulting mainly from increased food intake.

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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 > 0.1 Leptin mutant 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 Triple Mutant Mouse Recombinant in sterile water or sterile 0.4% NaHCO3 adjusted to pH 8-9, not less than 100µg/ml, which can then be further diluted with other aqueous solutions.
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).

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Description:

Vasoactive Intestinal Peptide

Product # :

HOR-043

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Description

Vasoactive Intestinal Peptide Synthetic is a single, non-glycosylated polypeptide chain containing 28 amino acids, having a molecular mass of 3325 Dalton and a Molecular formula of C147H238N44O42S .

Formulation

The protein was lyophilized with no additives.

Purity

Greater than 97.0% as determined by analysis by RP-HPLC.

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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Vasoactive Intestinal Peptide although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Vasoactive Intestinal Peptide 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 Vasoactive Intestinal Peptide in sterile 18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
H-His-Ser-Asp-Ala-Val-Phe-Thr-Asp-Asn-Tyr-Thr-Arg-Leu-Arg-Lys-Gln-Met-Ala-Val-Lys-Lys-Tyr-Leu-Asn-Ser-Ile-Leu-Asn-NH2.
Background
Vasoactive Intestinal Peptide (VIP), a prominent member of the glucagon-secretin peptide superfamily, plays a multifaceted role as a neuropeptide and neurotransmitter. This research paper aims to provide an extensive analysis of VIP, exploring its biochemical properties, diverse physiological functions, and potential therapeutic applications in various disease conditions.
Vasoactive Intestinal Peptide (VIP), originally identified for its potent vasodilatory properties in the gastrointestinal system, has since been recognized for its wide-ranging physiological effects throughout the body. As a neuropeptide and neurotransmitter.
VIP, a 28-amino acid peptide, exhibits a diverse range of biological activities due to its interactions with multiple G protein-coupled receptors (GPCRs) from the VIP/PACAP receptor family (Harmar et al., 2012). These receptors are expressed in various tissues and cells, enabling VIP to exert its pleiotropic effects.
VIP is involved in the regulation of numerous physiological processes. It functions as a potent vasodilator, modulates smooth muscle activity in the gastrointestinal tract, and participates in neurotransmission in the central and peripheral nervous systems (Lelievre et al., 2008). Additionally, VIP has immunomodulatory properties, influencing immune cell functions and inflammatory responses (Delgado et al., 2004).
VIP serves as a neurotransmitter in the central nervous system, where it contributes to various neuronal functions, including learning, memory, and sensory perception (Deng et al., 2015). Moreover, VIP has demonstrated neuroprotective effects in neurodegenerative disorders, making it a potential therapeutic target for neuroprotection and neuroregeneration (Delgado et al., 2002).
VIP's diverse physiological functions offer potential therapeutic applications in various disease contexts. Research has explored its potential in the treatment of inflammatory diseases, neurodegenerative disorders, and gastrointestinal disorders (Delgado et al., 2013). Furthermore, VIP-based therapies are being investigated for their neuroprotective potential in brain injuries and stroke.
As the research on VIP continues to progress, further investigation is warranted to uncover the precise mechanisms of action and potential clinical applications in medicine. VIP stands as a remarkable example of a neuropeptide with extensive physiological roles and therapeutic potential in various disease conditions.
What is the molecular weight/Mw of VASOACTIVE INTESTINAL PEPTIDE Protein?
VASOACTIVE INTESTINAL PEPTIDE Protein has a total Mw of 3.32kDa.

What is the Purity of VASOACTIVE INTESTINAL PEPTIDE Protein?
VASOACTIVE INTESTINAL PEPTIDE Protein is >97% pure as determined by SDS-PAGE.

What is the Biological Activity of VASOACTIVE INTESTINAL PEPTIDE Protein?
The biological functionality of VASOACTIVE INTESTINAL PEPTIDE Protein will be determined in the future.

What is the amino acid sequence of VASOACTIVE INTESTINAL PEPTIDE Protein?
H-His-Ser-Asp-Ala-Val-Phe-Thr-Asp-Asn-Tyr-Thr-Arg-Leu-Arg-Lys-Gln-Met-Ala-Val-Lys-Lys-Tyr-Leu-Asn-Ser-Ile-Leu-Asn-NH2.

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

What is the endotoxin level for VASOACTIVE INTESTINAL PEPTIDE Protein?
The endotoxin level is minimal, VASOACTIVE INTESTINAL PEPTIDE 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:

Parathyroid Hormone (1-84) Human Recombinant

Parathyrin, PTH, Parathormone.

Product # :

HOR-263

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Description

Parathyroid Hormone 1-84 (full length) Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 84 amino acids, having an MW of ~9.4kDa.The PTH is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

Lyophilized from a 0.2µm filtered concentrated solution in PBS pH7.4.

Purity

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

Biological Activity

The activity is calculated by its ability to induce cAMP accumulation in murine MC3T3E1 cells and is <50ng/ml, corresponding to a specific activity of greater than 2.0 x 10⁴ Units/mg.

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Introduction
Parathyroid hormone (PTH), or parathormone, is secreted by the parathyroid glands as a polypeptide containing 84 amino acids. It acts to increase the concentration of calciumin the blood, whereas calcitonin (a hormone produced by the parafollicular cells of the thyroid gland) acts to decrease calcium concentration. PTH acts to increase the concentration of calcium in the blood by acting upon parathyroid hormone receptorin three parts of the body: In the bones- It enhances the release of calcium from the large reservoir contained in the bones. Bone resorption is the normal destruction of bone by osteoclasts, which are indirectly stimulated by PTH. Stimulation is indirect since osteoclasts do not have a receptor for PTH; rather, PTH binds to osteoblasts, the cells responsible for creating bone. Binding stimulates osteoblasts to increase their expression of RANKL, which can bind to osteoclast precursors containing RANK, a receptor for RANKL. The binding of RANKL to RANK stimulates these precursors to fuse, forming new osteoclasts which ultimately enhances the resorption of bone.
In the kidney- It enhances active reabsorption of calcium from distal tubules and the thick ascending limb.
In the intestine- It enhances the absorption of calcium in the intestine by increasing the production of vitamin D and upregulating the enzyme responsible for 1-alpha hydroxylationof 25-hydroxy vitamin D, converting vitamin D to its active form (1,25-dihydroxy vitamin D) which effects the actual absorption of calcium (as Ca2+ ions) by the intestine via calbindin.
Recombinant Human full length PTH 1-84 has potential as an anti-osteoporotic agent, due to its properties as a bone formation stimulant, it increases bone turnover, stimulating osteoblasts and reducing both vertebral and non vertebral fractures.
Synonyms
Parathyrin, PTH, Parathormone.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Parathyrin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution PTH 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 Parathormone in sterile 18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
SVSEIQLMHN LGKHLNSMER VEWLRKKLQD VHNFVALGAP LAPRDAGSQR PRKKEDNVLV ESHEKSLGEA DKADVNVLTK AKSQ.

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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