BALDWIN, JACK E.;NORRIS, WILLIAM J.;FREEMAN, RICHARD T.;BRADLEY, MARK;ADL+, J. CHEM. SOC. CHEM. COMMUN.,(1988) N 16, C. 1128-1130
作者:BALDWIN, JACK E.、NORRIS, WILLIAM J.、FREEMAN, RICHARD T.、BRADLEY, MARK、ADL+
DOI:——
日期:——
Substrate specificity of isopenicillin N synthase
作者:George W. Huffman、Paul D. Gesellchen、Jan R. Turner、Robert B. Rothenberger、Harold E. Osborne、F. Dean Miller、Jerry L. Chapman、Stephen W. Queener
DOI:10.1021/jm00088a028
日期:1992.5
Highly purified isopenicillin N synthase (IPNS) from two sources (naturallyoccurring in Penicillium chrysogenum and that expressed in Escherichia coli via a cloned gene derived from Cephalosporium acremonium) have been isolated and utilized in vitro to test synthetic modifications of the natural substrate, (L-alpha-amino-delta-adipyl)-L-cysteinyl-D-valine (ACV). A very sensitive procedure utilizing
γ-Lactam formation from tripeptides with isopenicillin N synthase
作者:Jack E. Baldwin、William J. Norris、Richard T. Freeman、Mark Bradley、Robert M. Adlington、Sadie Long-Fox、Christopher J. Schofield
DOI:10.1039/c39880001128
日期:——
Incubation of isopenicillinNsynthase (IPNS) with analogues of the natural substrate [(5S)-5-amino-5-carboxypentanoyl]-L-cysteinyl-D-valine (2) in which the cysteinyl residue was replaced by homocysteine gave epimeric 5-hydroxy γ-lactams (10), with no evidence for the formation of bicyclic products.