Recombinant Human GASP-1
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Description | Growth and differentiation factor-associated serum protein-1 (GASP-1) is a secreted inhibitory TGF-β binding protein that contains multiple protease inhibitor structural domains. It is expressed primarily in the ovary, testis, and brain, and can act as a potent soluble inhibitor of myostatin and GDF-11, but not Activin-A. The GASP-1 gene encodes a 571 amino acid protein that contains a 29 amino acid secretion signal sequence, and multiple identifiable structural features, including a WAP domain, a follistatin/Kazal domain, an immunoglobulin domain, two tandem Kunitz domains, and a netrin domain. Recombinant human GASP-1 is a 542 amino acid protein that migrates at an apparent molecular weight of approximately 55-66 kDa by SDS-PAGE analysis under non-reducing conditions. |
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BiologicalActivity | Determined by its ability to inhibit human Myostatin (GDF-8) activity in MCP-11 cells. The ED50 for this effect is 0.0025-0.0040 µg/ml in the presence of 5ng/ml of human Myostatin (GDF-8). |
Authenticity | Verified by N-terminal and Mass Spectrometry analyses (when applicable). |
Endotoxin | Endotoxin level is <0.1 ng/ µg of protein (<1EU/ µg). |
Protein Content | Verified by UV Spectroscopy and/or SDS-PAGE gel. |
Storage | -20°C |
Precautions | Recombinant Human GASP-1 is for research use only and not for use in diagnostic or therapeutic procedures. |
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