Your request to link to rcsb for Chymotrypsinogen%20B

• 1KDQ: crystal structure analysis of the mutant s189d rat chymotrypsin (10.1016/S0022-2836(03)00849-0 )
• 2JET: crystal structure of a trypsin-like mutant (s189d , a226g) chymotrypsin. (10.1007/S10930-007-9110-3 )