1KHR:
reference: Crystal structure of Vat(D): an acetyltransferase that inactivates streptogramin group A antibiotics., Sugantino M, Roderick SL, Biochemistry 2002 Feb 19;41(7):2209-16. PMID: 11841212

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