Search: 812 results found for "Pigment Epithelium-Derived Factor"

Description:

Beta Defensin-3 Human Recombinant

HBD3, HBP3, DEFB3, HBD-3, HBP-3, DEFB103.

Product # :

CYT-461

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Description

Beta Defensin-3 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 45 amino acids and having a molecular mass of 5161.2 Dalton. The BD-3 is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The HBD-3 was lyophilized without additives.

Purity

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

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Introduction
Defensins form a family of microbicidal and cytotoxic peptides made by neutrophils. Members of the defensin family are highly similar in protein sequence. This gene encodes defensin, beta 103A, which has broad spectrum antimicrobial activity and may play an important role in innate epithelial defense.
Synonyms
HBD3, HBP3, DEFB3, HBD-3, HBP-3, DEFB103.
Physical Appearance
Sterile Filtered lyophilized (freeze-dried) powder.
Stability
Lyophilized Beta Defensin-3 Recombinant although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution BD-3 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 Beta Defensin-3 in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
GIINTLQKYY CRVRGGRCAV LSCLPKEEQI GKCSTRGRKC CRRKK.
Background
Beta Defensin-3 Human Recombinant: Advancements in Antimicrobial Peptide Therapy
Abstract:

Beta Defensin-3 (hBD-3) human recombinant is a promising antimicrobial peptide with broad-spectrum activity against bacteria, viruses, and fungi. This research paper provides an overview of hBD-3, including its properties, mode of action, and potential applications. Additionally, novel methodologies for the production and optimization of hBD-3 human recombinant are discussed, highlighting its future implications in the field of infectious disease management.
Introduction:

The rise of drug-resistant pathogens necessitates exploring alternative therapeutic approaches, such as antimicrobial peptides. Beta Defensin-3 (hBD-3) human recombinant has emerged as a potent candidate due to its broad-spectrum antimicrobial activity. This paper aims to examine the unique features of hBD-3 and propose innovative methodologies for its production and optimization.
Properties and Mode of Action:

hBD-3 possesses a distinct structural composition consisting of 45 amino acids, including an N-terminal loop, three antiparallel β-strands, and a C-terminal α-helix. These structural elements contribute to its ability to disrupt microbial membranes and target selectivity. The mode of action involves electrostatic interactions with negatively charged microbial membranes, leading to membrane disruption and subsequent cell death. Furthermore, hBD-3 exhibits immunomodulatory functions by promoting chemotaxis, enhancing phagocytic activity, and modulating the release of pro-inflammatory cytokines.
Production of hBD-3 Human Recombinant:

Various expression systems, such as bacterial, yeast, and mammalian cell-based platforms, have been explored for the efficient production of hBD-3 human recombinant. Each system offers distinct advantages and challenges, requiring careful selection to achieve high yields and desired protein quality. Optimization strategies, including codon optimization, fusion protein tags, and appropriate growth conditions, have been employed to enhance production efficiency. Purification techniques, such as chromatography and ultrafiltration, have been optimized to isolate high-quality hBD-3 recombinant.
Applications and Future Perspectives:

hBD-3 human recombinant exhibits significant therapeutic potential against drug-resistant pathogens, making it a promising alternative to conventional antibiotics. It also demonstrates promise in wound healing and tissue regeneration by stimulating angiogenesis, extracellular matrix production, and keratinocyte migration. Moreover, the unique physicochemical properties of hBD-3 open avenues for its utilization in nanomedicine, enabling targeted therapy and improved drug delivery.
Conclusion:

hBD-3 human recombinant represents a potent antimicrobial peptide with broad-spectrum activity against diverse pathogens. The optimization of production methodologies and further exploration of its mechanisms of action will contribute to its clinical utility. With its potential applications in infectious disease management, wound healing, and nanomedicine, hBD-3 human recombinant holds promise as a versatile therapeutic agent.
What is the molecular weight/Mw of BD3 Protein?
BD3 Protein has a total Mw of 5.1kDa.

What is the source or expression system of BD3 Protein?
Escherichia Coli.

What is the Purity of BD3 Protein?
BD3 Protein is >95% pure as determined by SDS-PAGE.

What is the Biological Activity of BD3 Protein?
The biological functionality of BD3 Protein will be determined in the future.

What is the amino acid sequence of BD3 Protein?
GIINTLQKYY CRVRGGRCAV LSCLPKEEQI GKCSTRGRKC CRRKK.

What applications can BD3 Protein be used in?
BD3 Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for BD3 Protein?
The endotoxin level is minimal, BD3 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 Rabbit Recombinant

OB Protein, Obesity Protein, OBS, Obesity factor.

Product # :

CYT-507

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Description

Leptin Rabbit 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 0.02% NaHCO3.

Purity

Greater than 98.0% 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 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-Arg.
Protein content
Protein quantitation was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.505 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.

Description:

Nephroblastoma Overexpressed (260-357 a.a.) Human Recombinant

Igfbp9, igfbp-9.

Product # :

CYT-1234

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Description

The IGFBP9 Human is created as a recombinant protein with a 4kda N-terminal fusion of His Tag. The IGFBP9 His-Tagged Fusion Protein, produced in E. coli, is a 18kDa protein containing 98 amino acid residues of the IGFBP9 Human, 260-357 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
Igfbp9, igfbp-9.
Physical Appearance
Filtered White lyophilized (freeze-dried) powder.
Stability
Store lyophilized IGFBP9 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.
Background
Nephroblastoma Overexpressed (NOV) is a part of the CCN (CTGF/CYR61/NOV) family which takes an important part in tissue repair and cellular signaling, differentiation and growth. NOV takes part in angiogenesis, extracellular matrix remodeling and cellular adhesion. NOV is also involved in reducing tumorgenicity and proliferation of certain cancer cell lines. NOV interacts with numerous proteins and participates in both internal and external cell signaling. NOV is expressed in tumors, including Wilm’s tumor and most nephroblastomas and is also exerts proangiogenic activities.

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-3 Human Recombinant, His Tag

Galectin-3, GAL3, MAC2, CBP35, GALB, GALIG, LGALS2, LGALS3, Galactose-specific lectin 3, Mac-2 antigen, IgE-binding protein, 35 kDa lectin, Carbohydrate-binding protein 35, CBP 35, Laminin-binding protein, Lectin L-29, L-31, Galactoside-binding protein, GALBP.

Product # :

CYT-693

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Description

LGALS3 Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 270 amino acids (1-250 a.a.) and having a molecular mass of 28.3 kDa. The LGALS3 is fused to a 20 amino acid His-Tag at N-terminus and purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The Galectin-3 protein solution (0.5mg/ml) contains 20mM Tris-HCl buffer (pH8.0), 0.1M NaCl, 1mM DTT and 10% Glycerol.

Purity

Greater than 95.0% as determined by SDS-PAGE.

Biological Activity

The ED50 for this effect is < 15ug/ml as measured by its ability to agglutinate human red blood cells.

sds-page

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Introduction
Galectin-3 mediates with the alpha-3, beta-1 integrin the stimulation by cspg4 of endothelial cells migration. Galectin-3 plays an necessary part during the acquisition of vasculogenic mimicry and angiogenic properties associated with melanoma progression. LGALS3 overexpression is highly expressed in early stages of papillary carcinoma, and its expression intensity declines during tumor progression. Serum levels of LGALS3 are high in patients with thyroid malignancy but there is considerable overlap in serum LGALS3 concentrations between those with benign and malignant nodular thyroid disease. LGLAS3 takes part as an immune regulator to inhibit T-cell immune responses and promote tumor growth, as a result providing a new mechanism for tumor immune tolerance.
Synonyms
Galectin-3, GAL3, MAC2, CBP35, GALB, GALIG, LGALS2, LGALS3, Galactose-specific lectin 3, Mac-2 antigen, IgE-binding protein, 35 kDa lectin, Carbohydrate-binding protein 35, CBP 35, Laminin-binding protein, Lectin L-29, L-31, Galactoside-binding protein, GALBP.
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 MADNFSLHDA LSGSGNPNPQ GWPGAWGNQP AGAGGYPGAS YPGAYPGQAP PGAYPGQAPP GAYPGAPGAY PGAPAPGVYP GPPSGPGAYP SSGQPSATGA YPATGPYGAP AGPLIVPYNL PLPGGVVPRM LITILGTVKP NANRIALDFQ RGNDVAFHFN PRFNENNRRV IVCNTKLDNN WGREERQSVF PFESGKPFKI QVLVEPDHFK VAVNDAHLLQ YNHRVKKLNE ISKLGISGDI DLTSASYTMI.
Background
What is the molecular weight/Mw of LGALS3 HUMAN, HIS Protein?
LGALS3 HUMAN, HIS Protein has a total Mw of 28.3kDa.

What is the source or expression system of LGALS3 HUMAN, HIS Protein?
Escherichia Coli.

What is the Purity of LGALS3 HUMAN, HIS Protein?
LGALS3 HUMAN, HIS Protein is >95% pure as determined by SDS-PAGE.

What is the Biological Activity of LGALS3 HUMAN, HIS Protein?
The ED50 for this effect is < 2.5ug/ml as measured by its ability to agglutinate human red blood cells.

What is the amino acid sequence of LGALS3 HUMAN, HIS Protein?
MGSSHHHHHH SSGLVPRGSH MADNFSLHDA LSGSGNPNPQ GWPGAWGNQP AGAGGYPGAS YPGAYPGQAP PGAYPGQAPP GAYPGAPGAY PGAPAPGVYP GPPSGPGAYP SSGQPSATGA YPATGPYGAP AGPLIVPYNL PLPGGVVPRM LITILGTVKP NANRIALDFQ RGNDVAFHFN PRFNENNRRV IVCNTKLDNN WGREERQSVF PFESGKPFKI QVLVEPDHFK VAVNDAHLLQ YNHRVKKLNE ISKLGISGDI DLTSASYTMI.

What applications can LGALS3 HUMAN, HIS Protein be used in?
LGALS3 HUMAN, HIS Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for LGALS3 HUMAN, HIS Protein?
The endotoxin level is minimal, LGALS3 HUMAN, HIS 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:

Thioredoxin Human Recombinant

Thioredoxin, ATL-derived factor, ADF, Surface-associated sulphydryl protein, SASP, TXN, TRDX, TRX, TRX1, MGC61975, DKFZp686B1993.

Product # :

PRO-569

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Description

Thioredoxin Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 105 amino acids and having a molecular mass of 11.7 kDa.

Source

Escherichia Coli.

Formulation

Thioredoxin solution containing 1mg/ml solution containing 1xPBS pH 7.4.

Purity

Greater than 90.0% as determined by SDS-PAGE.

Biological Activity

Specific activity is>150 A650/min/mg, obtained by measuring the increase of insulin precipitation in absorbance at 650 nm resulting from the reduction of insulin.

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Introduction
Thioredoxins are small disulphide-containing redox proteins (within the conserved Cys-Gly-Pro-Cys active site) that have been found in all the kingdoms of living organisms. Thioredoxin contains a single disulfide active site and serves as a general protein disulphide oxidoreductase. Thioredoxins are involved in the first unique step in DNA synthesis. It interacts with a broad range of proteins by a redox mechanism based on reversible oxidation of two cysteine thiol groups to a disulphide, accompanied by the transfer of two electrons and two protons. The net result is the covalent interconversion of a disulphide and a dithiol. It has been suggested that thioredoxin may catalyze the formation of correct disulfides during protein folding because of its ability to act as an efficient oxidoreductant. Trx also provides control over a number of transcription factors affecting cell proliferation and death through a mechanism referred to as redox regulation.
Synonyms
Thioredoxin, ATL-derived factor, ADF, Surface-associated sulphydryl protein, SASP, TXN, TRDX, TRX, TRX1, MGC61975, DKFZp686B1993.
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
MVKQIESKTA FQEALDAAGD KLVVVDFSAT WCGPCKMIKP FFHSLSEKYS NVIFLEVDVD DCQDVASECE VKCMPTFQFFKKGQKVGEFS GANKEKLEAT INELV.

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:

Activin A Receptor Type 1 Human Recombinant

ACVR1A, ALK2, ACVR1, ACTRI, ACTR-I, ACVRLK2, FOP, SKR1, TSRI, Activin receptor type I, Activin receptor-like kinase 2, ALK-2, TSR-I, Serine/threonine-protein kinase receptor R1, TGF-B superfamily receptor type I.

Product # :

CYT-1140

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Description

ACVR1 produced in Sf9 Baculovirus cells is a single, glycosylated polypeptide chain containing 342 amino acids (21-123a.a.) and having a molecular mass of 38.4kDa. ACVR1 is expressed with a 239 amino acid hIgG-His-Tag at C-Terminus and purified by proprietary chromatographic techniques.

Source

Sf9, Baculovirus cells.

Formulation

ACVR1 protein solution (0.25mg/ml) contains Phosphate Buffered Saline (pH 7.4) and 10% glycerol.

Purity

Greater than 90.0% as determined by SDS-PAGE.

sds-page

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Introduction
Activin A Receptor Type 1 (ACVR1) is a member of TGF-beta serine/threonine kinase receptor family. ACVR1 forms a receptor complex contains2 type II and 2 type I transmembrane serine/threonine kinases. Type II receptors phosphorylate and activate type I receptors which autophosphorylate,bind and activate SMAD transcriptional regulators. ACVR1 takes part in left-right pattern formation during embryogenesis and is also essential in the BMP pathway which is responsible for the development and repair of the skeletal system.ACVR1 is linked to Fibrodysplasia Ossificans Progressiva which isknown for the formation of heterotopic bone throughout the body.
Synonyms
ACVR1A, ALK2, ACVR1, ACTRI, ACTR-I, ACVRLK2, FOP, SKR1, TSRI, Activin receptor type I, Activin receptor-like kinase 2, ALK-2, TSR-I, Serine/threonine-protein kinase receptor R1, TGF-B superfamily receptor type I.
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
MEDEKPKVNP KLYMCVCEGL SCGNEDHCEG QQCFSSLSIN DGFHVYQKGC FQVYEQGKMT
CKTPPSPGQA VECCQGDWCN RNITAQLPTK GKSFPGTQNF HLELEPKSCD KTHTCPPCPA
PELLGGPSVF LFPPKPKDTL MISRTPEVTC VVVDVSHEDP EVKFNWYVDG VEVHNAKTKP
REEQYNSTYR VVSVLTVLHQ DWLNGKEYKC KVSNKALPAP IEKTISKAKG QPREPQVYTL
PPSRDELTKN QVSLTCLVKG FYPSDIAVEW ESNGQPENNY KTTPPVLDSD GSFFLYSKLT
VDKSRWQQGN VFSCSVMHEA LHNHYTQKSL SLSPGKHHHH HH.
Background
Functional Implications and Therapeutic Prospects of Activin A Receptor Type 1 Human Recombinant
1. Abstract
This study illuminates the functional roles and potential therapeutic applications of Activin A Receptor Type 1 Human Recombinant (ACVR1), a crucial protein in the TGF-beta superfamily signaling pathway. Through a comprehensive review of its structure, signaling mechanism, biological functions, and disease associations, this paper aims to elucidate the current understanding of ACVR1 and its potential therapeutic implications in various disease states.
2. Introduction
The Activin A Receptor Type 1 Human Recombinant, abbreviated as ACVR1, is a receptor protein vital for transmitting cellular signals in the Transforming Growth Factor-beta (TGF-beta) superfamily pathway. Known to play pivotal roles in organogenesis, bone growth, and cell differentiation, the ACVR1 and its functions present vast therapeutic potential.
3. Structure and Signaling of ACVR1
ACVR1 is a transmembrane serine/threonine kinase receptor, characterized by an extracellular ligand-binding domain and an intracellular kinase domain for signal transduction. Binding of ligands such as Activin A leads to the formation of heteromeric complexes with type II receptors, triggering phosphorylation events that activate downstream signaling pathways.
4. Biological Functions of ACVR1
Being a part of the TGF-beta superfamily signaling pathway, ACVR1 is implicated in a broad spectrum of biological processes. It is crucial for embryonic development, cellular proliferation, differentiation, apoptosis, and homeostasis. It also plays a significant role in bone morphogenesis, contributing to skeletal patterning and growth.
5. ACVR1 in Disease Pathology
The dysregulation of ACVR1 has been associated with various pathological conditions, including Fibrodysplasia Ossificans Progressiva (FOP), a rare genetic disorder characterized by progressive ossification of soft tissues. Mutations in ACVR1 lead to enhanced BMP signaling, causing aberrant bone formation. This highlights the critical role of ACVR1 in skeletal homeostasis and disease.
6. Therapeutic Potential of ACVR1
Given the central role of ACVR1 in cellular signaling and its association with disease, it presents a promising target for therapeutic intervention. Strategies to modulate ACVR1 signaling could potentially ameliorate symptoms of diseases like FOP, offering promising avenues for novel therapeutic approaches.
7. Conclusion and Future Perspectives
While our understanding of ACVR1's functional roles has expanded significantly over the years, much remains to be elucidated. Further research into the precise molecular mechanisms of ACVR1 and its pathway will pave the way for therapeutic advances, enhancing our capability to combat various diseases.
What is the molecular weight / Mw of ACVR1 Protein?
ACVR1 Protein has a total Mw of 38.4kDa.

What is the source or expression system of ACVR1 Protein?
Sf9, Baculovirus cells.

What is the Purity of ACVR1 Protein?
ACVR1 Protein is >90% pure as determined by SDS-PAGE.

What is the Biological Activity of ACVR1 Protein?
The biological functionality of ACVR1 Protein will be determined in the future.

What is the endotoxin level for ACVR1 Protein?
The endotoxin level is minimal, ACVR1 Protein was purified using conventional chromatography techniques.

What is the amino acid sequence of ACVR1 Protein?
MEDEKPKVNP KLYMCVCEGL SCGNEDHCEG QQCFSSLSIN DGFHVYQKGC FQVYEQGKMT
CKTPPSPGQA VECCQGDWCN RNITAQLPTK GKSFPGTQNF HLELEPKSCD KTHTCPPCPA
PELLGGPSVF LFPPKPKDTL MISRTPEVTC VVVDVSHEDP EVKFNWYVDG VEVHNAKTKP
REEQYNSTYR VVSVLTVLHQ DWLNGKEYKC KVSNKALPAP IEKTISKAKG QPREPQVYTL
PPSRDELTKN QVSLTCLVKG FYPSDIAVEW ESNGQPENNY KTTPPVLDSD GSFFLYSKLT
VDKSRWQQGN VFSCSVMHEA LHNHYTQKSL SLSPGKHHHH HH.

What applications can ACVR1 Protein be used in?
ACVR1 Protein can probably be used in western blot, ELISA and Lateral Flow

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-13 Human Recombinant

Galactoside-binding soluble lectin 13, Galectin-13, Gal-13, Placental tissue protein 13, PP13, Placental protein 13, LGALS13, PLAC8, GAL13.

Product # :

CYT-004

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Description

Recombinant Human LGALS13 produced in E.Coli is a single, non-glycosylated polypeptide chain having a molecular mass of 16kDa. The LGALS13 also might appear as a homodimer, having a total Mw of 32kDa. LGALS13 is fused to a 6xHis tag at n-terminal and purified using standard chromatography techniques.

Source

Escherichia Coli.

Formulation

LGALS13 protein solution (0.5mg/ml) is formulated in 1xPBS buffer pH 7.4.

Purity

Greater than 90.0% as determined by SDS-PAGE.

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Introduction
Recombinant Galectin-13 is an E. coli expressed peptide, this protein is one of human placenta specific galectins, like all galectin family, it contains a carbohydrate recognition domain (CRD) as well. Increased blood concentration was found highly asscoaited with preeclampsia and HELLP syndrome in pregnant women. The molecular weight of galectin-13 is 16kDa.
Synonyms
Galactoside-binding soluble lectin 13, Galectin-13, Gal-13, Placental tissue protein 13, PP13, Placental protein 13, LGALS13, PLAC8, GAL13.
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
MSSLPVPYKLPVSLSVGSCVIIKGTPIHSFINDPQLQVDFYTDM DEDSDIAFRFRVHFGNHVVMNRREFGIWMLEETTDYVPFEDGK
QFELCIYVHYNEYEIKVNGIRIYGFVHRIPPSFVKMVQVSRDISLTSVCVCN
Background
What is the molecular weight/Mw of LGALS13 HUMAN Protein?
LGALS13 HUMAN Protein has a total Mw of 32kDa.

What is the source or expression system of LGALS13 HUMAN Protein?
Escherichia Coli.

What is the Purity of LGALS13 HUMAN Protein?
LGALS13 HUMAN Protein is >90% pure as determined by SDS-PAGE.

What is the Biological Activity of LGALS13 HUMAN Protein?
The biological functionality of LGALS13 HUMAN Protein will be determined in the future.

What is the amino acid sequence of LGALS13 HUMAN Protein?
MSSLPVPYKLPVSLSVGSCVIIKGTPIHSFINDPQLQVDFYTDM DEDSDIAFRFRVHFGNHVVMNRREFGIWMLEETTDYVPFEDGK
QFELCIYVHYNEYEIKVNGIRIYGFVHRIPPSFVKMVQVSRDISLTSVCVCN

What applications can LGALS13 HUMAN Protein be used in?
LGALS13 HUMAN Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for LGALS13 HUMAN Protein?
The endotoxin level is minimal, LGALS13 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:

Prolactin Soluble Receptor Human Recombinant

PRL-R, hPRLrI.

Product # :

CYT-595

Price :

Quantity :

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Shipped at Room temp

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Description

Extra Cellular Domain Prolactin Receptor Human Recombinant produced in E.Coli is a non-glycosylated, Polypeptide chain containsing 210 amino acids and having a molecular mass of 23.97 kDa. The Prolactin Receptor is purified by proprietary chromatographic techniques according to Bignon et al. (1994) JBC 269; 3318-24 and tested according to Gertler et al. (1996) JBC 271; 24482-91.

Source

Escherichia Coli.

Formulation

The Prolactin Receptor was lyophilized from a concentrated (0.4mg/ml) solution with 0.0045mM NaHCO3.

Purity

Greater than 97.0% as determined by:
(a) Analysis by SEC-HPLC.
(b) Analysis by SDS-PAGE.
(c) Gel filtration at pH 8 under non denaturative conditions.

Biological Activity

Activity is determined by the dose-dependant inhibition of Prolactin stimuled proliferation of Nb2 cells and by high affinity binding of ovine Prolactin and other lactogenic hormones in 1:1 molar ratio.

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Introduction
Prolactin is a pituitary hormone that plays a role in the stimulation of milk production, salt and water regulation, growth, development and reproduction. The primary step in its action is the binding to a specific membrane receptor (prolactin receptor) which belongs to the superfamily of class 1 cytokine receptors. Prolactin is a hormone involved in a range of significant functions including ion transport and osmoregulation, stimulation of milk, protein synthesis as well as the regulation of numerous reproductive functions. Prolactin exerts its influence on different cell types through a signal transduction pathway which begins with the binding of the hormone to a transmembrane Prolactin receptor. 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.
Synonyms
PRL-R, hPRLrI.
Physical Appearance
Sterile filtered white lyophilized powder.
Stability
Lyophilized PRL-R although stable at room temperature for 1-2 weeks, should be stored desiccated below -18°C or preferably even at -80°C to prevent dimer formation. Upon reconstitution PRL-R should be stored sterile at 4°C between 2-7 days and for future use below -18°C. For long term storage at 4°C it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles as they cause oligomerization of the protein.
Solubility
It is recommended to reconstitute the lyophilized PRLR in sterile 18M-cm H2O not less than 100µg/ml and not more than 1 mg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
AGKPEIFKCRSPNKETFTCWWRPGTDGGLPTNYSLTYHREGETLMHECPDYITGGPNSCH
FGKQYTSMWRTYIMMVNATNQMGSSFSDELYVDVTYIVQPDPPLELAVEVKQPEDRKPYL
WIKWSPPTLIDLKTGWFTLLYEIRLKPEKAAEWEIHFAGQQTEFKILSLHPGQKYLVQVR
CKPDHGYWSAWSPATFIQIPSDFTMNDTTVW.
Protein content
UV spectroscopy at 280 nm using the absorbency value of 2.63 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).

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 Human Recombinant

Product # :

CYT-352

Price :

Quantity :

Shipping Method :

Shipped at Room temp

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Description

Leptin Antagonist Triple Mutant Human Recombinant is a single non-glycosilated polypeptide chain containing 146 amino and additional Ala at N-terminus acids and having a molecular weight of 16 kDa, Leptin was mutated, resulting in L39A/D40A/F41A. Leptin Antagonist Triple Mutant Human Recombinant was 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 98.0% as determined by:
(a) Gel filtration analysis.
(b) Analysis by SDS-PAGE.

Biological Activity

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

More Info

Physical Appearance
White lyophilized (freeze-dried) powder.
Stability
Lyophilized Leptin Antagonist Triple Mutant Human 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 2 mg/ml and filter sterilization Leptin 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 Human Recombinant in sterile 0.4% NaHCO3, 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 UV spectroscopy at 280 nm using the absorbency value of 0.88 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.

Description:

Insulin Human Recombinant

Product # :

CYT-270

Price :

Quantity :

Shipping Method :

Shipped at Room temp

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Description

Insulin Human Recombinant produced in E.Coli is a two chain, non-glycosylated polypeptide chain containing 51 amino acids and having a molecular mass of 5807 Dalton. Insulin is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The protein was lyophilized from a concentrated (1mg/ml) solution with no additives.

Purity

Greater than 98.0% as determined by RP-HPLC analysis.

Biological Activity

The Biological Activity was determined to be 28 units/mg.

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Introduction
Insulin decreases blood glucose concentration. It increases cell permeability to monosaccharides, amino acids and fatty acids. It accelerates glycolysis, the pentose phosphate cycle, and glycogen synthesis in liver.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Insulin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Insulin 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 Insulin in sterile 0.005N HCl not more than 1 mg/ml.

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:

Monocyte Chemotactic Protein-1 Mouse Recombinant (CCL2)

Small inducible cytokine A2, CCL2, Monocyte chemotactic protein 1, MCP-1, Monocyte chemoattractant protein 1, Monocyte chemotactic and activating factor, MCAF, Monocyte secretory protein JE, HC11, chemokine (C-C motif) ligand 2, MCP1, SCYA2, GDCF-2, SMC-CF, HSMCR30, MGC9434, GDCF-2 HC11, Platelet-derived growth factor-inducible protein JE.

Product # :

CHM-313

Price :

Quantity :

Shipping Method :

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Description

Monocyte Chemotactic Protein-1 Mouse Recombinant produced in E.Coli is a single,non-glycosylated, polypeptide chain containing 125 amino acids and having a molecular mass of 14 kDa. The MCP-1 is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The protein was lyophilized with no additives.

Purity

Greater than 90.0% as determined by:
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.

Biological Activity

The biological activity was determined by calculating its ability to chemoattract Balb/C mouse spleen MNCs at 1.0-20.0 ng/ml.

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Introduction
Chemokine (C-C motif) ligand 2 (CCL2) is a small cytokine belonging to the CC chemokine family that is also known as monocyte chemotactic protein-1 (MCP-1). It is found at the site of tooth eruption and bone degradation. In the bone, CCL2 is expressed by mature osteoclasts and osteoblasts and is under the control of nuclear factor ?B (NF?B). CCL2 recruits immune cells, such as monocytes, to sites of tissue injury and infection. This chemokine is produced as a protein precursor containing signal peptide of 23 amino acidsand a mature peptide of 76 amino acids. It is a monomeric polypeptide, with a molecular weight of approximately 13kDa. As with many other CC chemokines, CCL2 is located on chromosome 17 in humans. The cell surface receptors that bind CCL2 are CCR2 and CCR5.
Synonyms
Small inducible cytokine A2, CCL2, Monocyte chemotactic protein 1, MCP-1, Monocyte chemoattractant protein 1, Monocyte chemotactic and activating factor, MCAF, Monocyte secretory protein JE, HC11, chemokine (C-C motif) ligand 2, MCP1, SCYA2, GDCF-2, SMC-CF, HSMCR30, MGC9434, GDCF-2 HC11, Platelet-derived growth factor-inducible protein JE.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized MCP-1 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution CCL2 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 Monocyte Chemotactic Protein-1 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-Pro-Asp-Ala-Val.
Background
What is the molecular weight/Mw of CCL2 MOUSE Protein?
CCL2 MOUSE Protein has a total Mw of 14kDa.

What is the source or expression system of CCL2 MOUSE Protein?
Escherichia Coli.

What is the Purity of CCL2 MOUSE Protein?
CCL2 MOUSE Protein is >90% pure as determined by SDS-PAGE.

What is the Biological Activity of CCL2 MOUSE Protein?
The biological activity was determined by calculating its ability to chemoattract Balb/C mouse spleen MNCs at 1.0-20.0 ng/ml.

What is the amino acid sequence of CCL2 MOUSE Protein?
The sequence of the first five N-terminal amino acids was determined and was found to be Gln-Pro-Asp-Ala-Val.

What applications can CCL2 MOUSE Protein be used in?
CCL2 MOUSE Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for CCL2 MOUSE Protein?
The endotoxin level is minimal, CCL2 MOUSE Protein was purified using conventional chromatography techniques.

Who supplies recombinant CCL2 MOUSE that is in stock and available to order?
ProSpec has the protein in stock and available for immediate delivery.

Where can I order bulk mg quantities of CCL2 MOUSE?
ProSpec supplies bulk mg quantities at affordable prices that meets research and academic budgets.

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 Porcine Recombinant

OB Protein, Obesity Protein, OBS, Obesity factor.

Product # :

CYT-503

Price :

Quantity :

Shipping Method :

Shipped at Room temp

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Description

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

Source

Escherichia Coli.

Formulation

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

Purity

Greater than 98.0% as determined by:
(a) Gel filtration analysis.
(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.

More Info

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 recombinant porcine leptin 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-Trp.
Protein content
Protein quantitation was carried out by two independent methods:1. UV spectroscopy at 280 nm using the absorbency value of 0.57 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 Porcine 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:

Interleukin-22 Human Recombinant, Sf9

IL-TIF, TIFa, IL-10-related T-cell-derived-inducible factor, IL-22, ILTIF, IL-D110, zcyto18, MGC79382, MGC79384, TIFIL-23.

Product # :

CYT-1092

Price :

Quantity :

Shipping Method :

Shipped with Ice Packs

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Description

IL22 produced in Sf9 Baculovirus cells is a single, glycosylated polypeptide chain (34-179 a.a.) fused to a 6 aa His Tag at C-terminus containing a total of 155 amino acids and having a molecular mass of 17.8kDa. IL22 is purified by proprietary chromatographic techniques.

Source

Sf9, Baculovirus cells.

Formulation

IL22 protein solution (1mg/ml) contains Phosphate Buffered Saline (pH 7.4) & 10% glycerol.

Purity

Greater than 90.0% as determined by SDS-PAGE.

Biological Activity

The ED50 as determined by its ability to induce IL-10 secretion using COLO 205 human colorectal adenocarcinoma cell is ≤ 1.2 ng/ml.

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Introduction
Interleukin-22 (IL-22), also known as IL-10-related T cell-derived inducible factor (IL-TIF) was initially identified as a gene induced by IL-9 in mouse T cells and mast cells. Mouse IL-22 cDNA encodes a 179 amino acid residue protein with a putative 33 amino acids signal peptide that is cleaved to generate a 147 aa mature protein that shares approximately 79% and 22% aa sequence identity with human IL-22 and IL-10, respectively. IL-22 has been shown to activate STAT-1 and STAT-3 in several hepatoma cell lines and upregulate the production of acute phase proteins. IL-22 is produced by normal mouse T cells upon Con A activation. Mouse IL-22 expression is also induced in various organs upon lipopolysaccharide injection, suggesting that IL-22 may be involved in inflammatory responses. The functional IL-22 receptor complex consists of two receptor subunits, IL-22R (previously an orphan receptor named CRF2-9) and IL-10R? (previously known as CRF2-4), belonging to the class II cytokine receptor family.
Synonyms
IL-TIF, TIFa, IL-10-related T-cell-derived-inducible factor, IL-22, ILTIF, IL-D110, zcyto18, MGC79382, MGC79384, TIFIL-23.
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
ADPAPISSHC RLDKSNFQQP YITNRTFMLA KEASLADNNT DVRLIGEKLF HGVSMSERCY LMKQVLNFTL EEVLFPQSDR FQPYMQEVVP FLARLSNRLS TCHIEGDDLH IQRNVQKLKD TVKKLGESGE IKAIGELDLL FMSLRNACIH HHHHH.

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 Rat Recombinant

Product # :

CYT-355

Price :

Quantity :

Shipping Method :

Shipped at Room temp

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Description

Leptin Antagonist Triple Mutant Rat Recombinant is a singly non-glycosilated polypeptide chain containing 146 amino and additional Ala at N-terminus acids and having a molecular mass of ~ 16 kDa, Leptin was mutated, resulting in L39A/D40A/F41A mutant. Leptin Antagonist Triple Mutant Rat Recombinant was purified by proprietary chromatographic techniques.

Source

Escherichia coli.

Formulation

The protein was lyophilized from a concentrated (0.85mg/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

ProSpec’s Leptin Antagonist Triple Mutant Rat Recombinant is capable of inhibiting leptin-induced proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. It also inhibits various leptin effects in several in vitro bioassays.

More Info

Physical Appearance
White lyophilized (freeze-dried) powder.
Stability
Lyophilized Leptin-Antagonist Triple Mutant Rat 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 2 mM and filter sterilization LEP-tA 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 Rat 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.
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 quantization was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.21 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.

Description:

Osteopontin Human Recombinant, HEK

Secreted Phosphoprotein-1, OPN, BNSP, BSPI, ETA-1, MGC110940, SPP-1, Osteopontin, Bone sialoprotein 1, Urinary stone protein, Nephropontin, Uropontin, SPP1.

Product # :

CYT-047

Price :

Quantity :

Shipping Method :

Shipped at Room temp

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Description

Osteopontin Human Recombinant is a single, glycosylated, polypeptide chain produced in HEK293 cells, is a full length protein (amino acids 17-314) fused with a polyhistidine tag at the C-terminus, having a total calculated molecular mass of 34.5kDa (The actual molecular mass may be approximately 60-65kDa in SDS-PAGE under reducing conditions due to glycosylation).Osteopontin is purified by proprietary chromatographic techniques.

Source

HEK293 cells.

Formulation

Osteopontin was lyophilized from a 0.2µM filtered solution of 20mM PBS and 150mM NaCl, pH 7.2.

Purity

Greater than 95.0% as determined by SDS-PAGE.

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Introduction
Osteopontin is a glycoprotein that was first identified in osteoblasts and is involved in bone remodeling, immune functions in fibroblasts, macrophages, and lymphocytes during inflammation and wound healing. SPP1 binds tightly to hydroxyapatite. SPP1 forms an integral part of the mineralized matrix. SPP1 is vital to cell-matrix interaction.
Secreted Phosphoprotein-1 protects against cardiac ischemia-reperfusion injury via late preconditioning. Expression of both Ostepontin and CD44 in hepatocellular carcinoma is linked with advanced tumor stage and contributes to prognosis information. SPP1 is the most over-expressed gene in intrahepatic cholangiocarcinoma. Secreted Phosphoprotein-1 overexpression is related with interstitial lung diseases.
Synonyms
Secreted Phosphoprotein-1, OPN, BNSP, BSPI, ETA-1, MGC110940, SPP-1, Osteopontin, Bone sialoprotein 1, Urinary stone protein, Nephropontin, Uropontin, SPP1.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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.
Solubility
It is recommended to reconstitute the lyophilized SPP1 in 1xPBS to a concentration no less than 100 µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
IPVKQADSGSSEEKQLYNKYPDAVATWLNPDPSQKQNLLAPQNAVSSEETNDFKQETL
PSKSNESHDHMDDMDDEDDDDHVDSQDSIDSNDSDDVDDTDDSHQSDESHHSDESDEL
VTDFPTDLPATEVFTPVVPTVDTYDGRGDSVVYGLRSKSKKFRRPDIQYPDATDEDIT
SHMESEELNGAYKAIPVAQDLNAPSDWDSRGKDSYETSQLDDQSAETHSHKQSRLYKRK
ANDESNEHSDVIDSQELSKVSREFHSHEFHSHEDMLVVDPKSKEEDKHLKFRISHELDS
ASSEVNVDHHHHHH.

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:

Soluble RANK Ligand Human Recombinant, His Tag

Soluble Receptor Activator of NFkB Ligand, TNFSF11, TRANCE, TNF-related activation-induced cytokine, OPGL, ODF, Osteoclast differentiation factor, Tumor necrosis factor ligand superfamily member 11, Receptor activator of nuclear factor kappa B ligand, RANKL, Osteoprotegerin ligand, CD254 antigen, sRANKL, sOdf, hRANKL2.

Product # :

CYT-692

Price :

Quantity :

Shipping Method :

Shipped with Ice Packs

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Description

sRANKL Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 199 amino acids (140-317 a.a) and having a molecular mass of 22.3kDa.sRANKL is fused to a 21 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

sRANKL protein solution (0.5mg/ml) containing 20mM Tris-HCl buffer (pH8.0), 20% glycerol, 0.1M NaCl and 1mM DTT.

Purity

Greater than 80.0% as determined by SDS-PAGE.

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Introduction
RANKL binds to tnfrsf11b/opg and to tnfrsf11a/rank. Osteoclast differentiation and activation factor. Augments the ability of dendritic cells to stimulate naive t-cell proliferation. May be an important regulator of interactions between t-cells and dendritic cells and may play a role in the regulation of the t-cell-dependent immune response. sRANKL may also play an important role in enhanced bone-resorption in humoral hypercalcemia of malignancy.
Synonyms
Soluble Receptor Activator of NFkB Ligand, TNFSF11, TRANCE, TNF-related activation-induced cytokine, OPGL, ODF, Osteoclast differentiation factor, Tumor necrosis factor ligand superfamily member 11, Receptor activator of nuclear factor kappa B ligand, RANKL, Osteoprotegerin ligand, CD254 antigen, sRANKL, sOdf, hRANKL2.
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 MIRAEKAMVD GSWLDLAKRS KLEAQPFAHL TINATDIPSG SHKVSLSSWY HDRGWAKISN MTFSNGKLIV NQDGFYYLYA NICFRHHETS GDLATEYLQL MVYVTKTSIK IPSSHTLMKG GSTKYWSGNS EFHFYSINVG GFFKLRSGEE ISIEVSNPSL LDPDQDATYF GAFKVRDID.

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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source
formulation
purity
biological activity
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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.

More Info

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:

Galectin-14 Human Recombinant

Placental protein 13-like, Charcot-Leyden crystal protein 2, CLC2, Galectin-14, Gal-14, LGALS14, PPL13, MGC22235.

Product # :

CYT-003

Price :

Quantity :

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Shipped with Ice Packs

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Description

LGALS14 Human Recombinant fused with a 23 amino acid His tag at N-terminus produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 162 amino acids (1-139 a.a.) and having a molecular mass of 18.5kDa. The LGALS14 is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The LGALS14 solution (0.5mg/ml) contains 20mM Tris-HCl buffer (pH8.0), 20% glycerol, 0.1M NaCl and 1mM DTT.

Purity

Greater than 90.0% as determined by SDS-PAGE.

More Info

Introduction
Galectin14, aka LGALS14, is a member of the galectin family of carbohydrate binding proteins. Galectin family members contain one or two carbohydrate recognition domains, which can bind beta-galactoside. The LGALS14 gene is predominantly expressed in the placenta. LGALS14 is expressed intracellularly in the placenta and eosinophils and is released by eosinophils following allergen stimulation. LGALS14 may be involved in the development of allergic inflammation.
Synonyms
Placental protein 13-like, Charcot-Leyden crystal protein 2, CLC2, Galectin-14, Gal-14, LGALS14, PPL13, MGC22235.
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 MGSMSSLPVP YTLPVSLPVG SCVIITGTPI LTFVKDPQLE VNFYTGMDED SDIAFQFRLH FGHPAIMNSR VFGIWRYEEK CYYLPFEDGK PFELCIYVRH KEYKVMVNGQ RIYNFAHRFP PASVKMLQVL RDISLTRVLI SD.
Background
What is the molecular weight/Mw of LGALS14 HUMAN Protein?
LGALS14 HUMAN Protein has a total Mw of 18.5kDa.

What is the source or expression system of LGALS14 HUMAN Protein?
Escherichia Coli.

What is the Purity of LGALS14 HUMAN Protein?
LGALS14 HUMAN Protein is >90% pure as determined by SDS-PAGE.

What is the Biological Activity of LGALS14 HUMAN Protein?
The biological functionality of LGALS14 HUMAN Protein will be determined in the future.

What is the amino acid sequence of LGALS14 HUMAN Protein?
MGSSHHHHHH SSGLVPRGSH MGSMSSLPVP YTLPVSLPVG SCVIITGTPI LTFVKDPQLE VNFYTGMDED SDIAFQFRLH FGHPAIMNSR VFGIWRYEEK CYYLPFEDGK PFELCIYVRH KEYKVMVNGQ RIYNFAHRFP PASVKMLQVL RDISLTRVLI SD.
What applications can LGALS14 HUMAN Protein be used in?
LGALS14 HUMAN Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for LGALS14 HUMAN Protein?
The endotoxin level is minimal, LGALS14 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 Antagonist Triple Mutant Ovine Recombinant

Product # :

CYT-356

Price :

Quantity :

Shipping Method :

Shipped at Room temp

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Description

Leptin Antagonist Triple Mutant Ovine 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, Leptin was mutated, resulting in L39A/D40A/F41A mutant. Leptin Antagonist Triple Mutant Ovine Recombinant was purified by proprietary chromatographic techniques.

Source

Escherichia coli.

Formulation

The protein 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

ProSpec’s Leptin-Antagonist Triple Mutant Ovine Recombinant is capable of inhibiting leptin-induced proliferation of BAF/3 cells stably transfected with the long form of mouse leptin receptor. It also inhibits various leptin effects in several in vitro bioassays.

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Physical Appearance
White lyophilized (freeze-dried) powder.
Stability
Lyophilized Leptin Antagonist Triple Mutant Ovine Recombinant although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1 Lep-tA mutant mg/ml and up to 2 mM and filter sterilization Leptin 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 Ovine Recombinant in sterile water or sterile 0.4% NaHCO3 adjusted to pH 8, 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-Arg.
Protein content
Protein quantitation was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.21 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.

Description:

Interleukin-6 Human Recombinant

B cell differentiation factor, BCDF, BSF-2, HPGF, HSF, MGI-2, B-cell stimulatory factor 2,Hybridoma growth factor, CTL differentiation factor, CDF, IL-6, HGF.

Product # :

CYT-213

Price :

Quantity :

Shipping Method :

Shipped at Room temp

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description
source
formulation
purity
biological activity
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Description

Interleukin-6 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 184 amino acids and having a molecular mass of 21000 Dalton. The IL6 is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

Lyophilized from a 0.2um filtered concentrated (1mg/ml) 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 ED50 as determined by the dose-dependant stimulation of murine 7TD1 cells is less than 0.1 ng/ml, corresponding to the specific activity of 1.0 x 10,000,000 Units per mg.

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Introduction
Il-6 is a cytokine with a wide variety of biological functions: it plays an essential role in the final differentiation of b-cells into ig-secreting cells, it induces myeloma and plasmacytoma growth, it induces nerve cells differentiation, in hepatocytes it induces acute phase reactants.
Synonyms
B cell differentiation factor, BCDF, BSF-2, HPGF, HSF, MGI-2, B-cell stimulatory factor 2,Hybridoma growth factor, CTL differentiation factor, CDF, IL-6, HGF.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Interleukin-6 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IL6 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 Interleukin-6 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 Met-Pro-Val-Pro-Pro.
Background
What is the molecular weight/Mw of IL 6 HUMAN Protein?
IL 6 HUMAN Protein has a total Mw of 21kDa.

What is the source or expression system of IL 6 HUMAN Protein?
Escherichia Coli.

What is the Purity of IL 6 HUMAN Protein?
IL 6 HUMAN Protein is >97% pure as determined by SDS-PAGE.

What is the Biological Activity of IL 6 HUMAN Protein?
The ED50 as determined by the dose-dependant stimulation of murine 7TD1 cells is less than 0.1 ng/ml, corresponding to the specific activity of 1.0 x 10,000,000 Units per mg.

What is the amino acid sequence of IL 6 HUMAN Protein?
The sequence of the first five N-terminal amino acids was determined and was found to be Met-Pro-Val-Pro-Pro.

What applications can IL 6 HUMAN Protein be used in?
IL 6 HUMAN Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for IL 6 HUMAN Protein?
The endotoxin level is minimal, IL 6 HUMAN Protein was purified using conventional chromatography techniques.

Who supplies recombinant IL 6 HUMAN that is in stock and available to order?
ProSpec has the protein in stock and available for immediate delivery.

Where can I order bulk mg quantities of IL 6 HUMAN?
ProSpec supplies bulk mg quantities at affordable prices that meets research and academic budgets.
Protein content
Protein quantitation was carried out by two independent methods:1. UV spectroscopy at 280 nm using the absorbency value of 0.47 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 IL-6 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.

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