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Mastoparan is an antimicrobial peptide (AMP) toxin originally found in wasp venom. Mastoparan increases GTPase activity and GTP binding, resulting in increases in Ca2+ influx. Mastoparan increases permeability of various cells; it induces degranulation and histamine release in mast cells. Additionally, this peptide inhibits production of TGF-β1 in vivo.
| Cas No. | 72093-21-1 |
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| Purity | ≥95% |
| Formula | C70H131N19O15 |
| Formula Wt. | 1478.92 |
| IUPAC Name | (2S)-N-[(2S)-1-[[(2S)-6-amino-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-6-amino-1-[[(2S)-6-amino-1-[[(2S)-1-[[(2S)-1-amino-4-methyl-1-oxopentan-2-yl]amino]-3-methyl-1-oxopentan-2-yl]amino]-1-oxohexan-2-yl]amino]-1-oxohexan-2-yl]amino]-1-oxopropan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxopropan-2-yl]amino]-1-oxopropan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxopropan-2-yl]amino]-1-oxohexan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]-2-[[(2S,3S)-2-amino-3-methylpentanoyl]amino]butanediamide |
| Synonym | Mast cell degranulating peptide (Vespula lewisii) |
| Solubility | Soluble in acetic acid (1 mg/mL). |
| Appearance | White to off white powder |
| Store Temp | -20°C |
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| Ship Temp | Ambient |
| MSDS | |
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| Info Sheet |
Brophy TM, Coller BS, Ahamed J. Identification of the thiol isomerase-binding peptide, mastoparan, as a novel inhibitor of shear-induced transforming growth factor β1 (TGF-β1) activation. J Biol Chem. 2013 Apr 12;288(15):10628-39. PMID: 23463512.
Nakao S, Komagoe K, Inoue T, et al. Comparative study of the membrane-permeabilizing activities of mastoparans and related histamine-releasing agents in bacteria, erythrocytes, and mast cells. Biochim Biophys Acta. 2011 Jan;1808(1):490-7. PMID: 20955685.
Higashijima T, Uzu S, Nakajima T, et al. Mastoparan, a peptide toxin from wasp venom, mimics receptors by activating GTP-binding regulatory proteins (G proteins). J Biol Chem. 1988 May 15;263(14):6491-4. PMID: 3129426.