Isopenicillin N Synthase Binds δ-(L-α-Aminoadipoyl)-L-Cysteinyl-D-Thia-allo-Isoleucine through both Sulfur Atoms
作者:Ian J. Clifton、Wei Ge、Robert M. Adlington、Jack E. Baldwin、Peter J. Rutledge
DOI:10.1002/cbic.201100149
日期:2011.8.16
Polar opposites: IPNS converts a wide range of substrate analogues into modified β‐lactams, including nurmerous tripeptides in which the third amino acid (normally valine) is substituted. However IPNS does not like polar residues in this position. The crystal structure of the protein with a substrate analogue that incorporates D‐thio‐allo‐isoleucine in place of valine sheds light on this predilection