Multiple Assemblies exist for SMTL entry 1y3b
Crystal structure of the complex of subtilisin BPN' with chymotrypsin inhibitor 2 E60S mutant; X-RAY DIFFRACTION 1.80 Å

SMTL ID
1y3b.1
Ligands
CALCIUM ION; SODIUM ION; CITRIC ACID; POLYETHYLENE GLYCOL (N=34)
Polypeptides
subtilisin BPN'; chymotrypsin inhibitor 2
Oligo-state
hetero-1-1-mer
SMTL ID
1y3b.2
Ligands
CALCIUM ION; SODIUM ION; CITRIC ACID; POLYETHYLENE GLYCOL (N=34)
Polypeptides
subtilisin BPN'; chymotrypsin inhibitor 2
Oligo-state
hetero-2-2-mer