Organization of an efficient carbonic anhydrase: implications for the mechanism based on structure-function studies of a T199P/C206S mutant.
Huang, S., Sjoblom, B., Sauer-Eriksson, A.E., Jonsson, B.H.(2002) Biochemistry 41: 7628-7635
- PubMed: 12056894 
- DOI: 10.1021/bi020053o
- Primary Citation of Related Structures:  
1LG5, 1LG6, 1LGD - PubMed Abstract: 
Substitution of Pro for Thr199 in the active site of human carbonic anhydrase II (HCA II)(1) reduces its catalytic efficiency about 3000-fold. X-ray crystallographic structures of the T199P/C206S variant have been determined in complex with the substrate bicarbonate and with the inhibitors thiocyanate and beta-mercaptoethanol ...