A cis-proline to alanine mutant of E. coli aspartate transcarbamoylase: kinetic studies and three-dimensional crystal structures.
Jin, L., Stec, B., Kantrowitz, E.R.(2000) Biochemistry 39: 8058-8066
- PubMed: 10891088 
- Primary Citation of Related Structures:  
- PubMed Abstract: 
The only cis-proline residue in Escherichia coli aspartate transcarbamoylase has been replaced by alanine using site-specific mutagenesis. The Pro268-->Ala enzyme exhibits a 40-fold reduction in enzyme activity and decreased substrate affinity toward ...