Penicillin biosynthesis: active site mapping with L-α-aminoadipoyl-(C-methyl-L-cysteinyl)-D-valine variants
Abstract
A series of structural variants of the cysteinyl moiety of the natural precursor of penicillins, δ(L-α-aminoadipoyl)-L-cysteinyl-D-valine, have been synthesised and their effectiveness as substrates for the enzyme isopenicillin N synthetase has been evaluated.