Crabrolin
Synthetic Peptide
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Primary Accession | P01518 |
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Sequence | NH2-FLPLILRKIVTAL-CONH2 |
Other Names | Crabrolin, CRBL |
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Format | Peptides are lyophilized in a solid powder format. Peptides can be reconstituted in solution using the appropriate buffer as needed. |
Storage | Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C. |
Precautions | This product is for research use only. Not for use in diagnostic or therapeutic procedures. |
Name | CRBL |
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Function | Antimicrobial and mast cell degranulating peptide (PubMed:6206053, PubMed:9273892, PubMed:31487493). Shows low antimicrobial activity towards some Gram-negative bacteria (E.coli MIC=300 ug/ml, S.typhimurium MIC=300 ug/ml) and all Gram-positive bacteria tested (B.subtilis MIC=300 ug/ml, S.aureus MIC=300 ug/ml, E.faecalis MIC=150 ug/ml, and E.faecium MIC=75 ug/ml) (PubMed:9273892, PubMed:31487493). May act by permeabilizing membranes, since it permeabilizes liposomes composed by phosphatidylethanolamine(PE)/phosphatidylglycerol(PG) and cardiolipin(CL)/phosphatidylglycerol(PG), which mimic the membranes of Gram-negative and Gram-positive bacteria, respectively (PubMed:31487493). Causes hemolysis on rat and guinea pig erythrocytes (PubMed:6206053, PubMed:9273892). Its mast cell degranulation activity may be related to the activation of G-protein coupled receptors in mast cells as well as interaction with other proteins located in cell endosomal membranes in the mast cells (By similarity). |
Cellular Location | Secreted. Target cell membrane. Note=Assumes an amphipathic alpha-helical conformation in a membrane-like environment |
Tissue Location | Expressed by the venom gland. |
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