1CP9:
reference: Crystal structure of penicillin G acylase from the Bro1 mutant strain of Providencia rettgeri., McDonough MA, Klei HE, Kelly JA, Protein Sci 1999 Oct;8(10):1971-81. PMID: 10548042

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).