Solid phase synthesis and biological activity of mast cell degranulating (MCD) peptide: a component of bee venom
- 1 February 1989
- journal article
- research article
- Published by Wiley in International Journal of Peptide and Protein Research
- Vol. 33 (2), 86-93
- https://doi.org/10.1111/j.1399-3011.1989.tb00192.x
Abstract
Mast cell degranulating (MCD) peptide, a 22 amino acid residue basic peptide from bee venom, was synthesized by stepwise solid phase synthesis on a benzhydrylamine resin support. N.alpha.-t-butyloxycarbonyl and benzyl type side chain protection was used. The two disulfide bridges were formed selectively by using S-acetamidomethyl protection for the cysteine residues in positions 5 and 19 and S-methylbenzyl protection for the cysteine residues in positions 3 and 15. Crude synthetic MCD peptide was obtained following deprotection and cleavage from the resin by the low/high HF method. The peptide was isolated in pure form by ion exchange chromatography and gel filtration. The final product has physical, chemical, and biological properties identical with those reported for the natural product. The synthetic strategy utilized for MCD peptide will facilitate the availability of structurally similar analogs for evaluating antihistamine and anti-inflammatory activities.Keywords
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