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Biomimetic Synthesis of Lantibiotics
Author(s) -
Burrage Sarah,
Raynham Tony,
Williams Glyn,
Essex Jonathan W.,
Allen Carl,
Cardno Marianne,
Swali Vinay,
Bradley Mark
Publication year - 2000
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/(sici)1521-3765(20000417)6:8<1455::aid-chem1455>3.0.co;2-m
Subject(s) - lantibiotics , lanthionine , peptide , chemistry , cysteine , amino acid , stereochemistry , regioselectivity , combinatorial chemistry , nisin , ring (chemistry) , peptide synthesis , antibacterial peptide , organic chemistry , biochemistry , biology , antibacterial activity , enzyme , bacteria , catalysis , antimicrobial , genetics
The lantibiotics are a class of highly posttranslationally modified small peptide antibiotics containing numerous lanthionine and dehydroamino acid residues. We have prepared peptides containing multiple dehydroamino acids and cysteine residues in order to probe the biomimetic synthesis of the lantibiotics from their precursor peptides. A novel synthetic methodology was developed to allow the synthesis of multiple dehydroamino acid containing peptides. Cyclisations were rapid, quantitative and regiospecific. Remarkably the peptide sequences alone appear to contain sufficient information to direct a series of stereo‐ and regiospecific ring closures. Thus both the two linear peptides for the B and E‐rings closed stereoselectively. In the case of the A‐ring precursor peptide which contained two dehydroamino acids, cyclisation was again totally regioselective, although not totally stereoselective.