1XPR:
reference: Structural mechanism of inhibition of the Rho transcription termination factor by the antibiotic bicyclomycin., Skordalakes E, Brogan AP, Park BS, Kohn H, Berger JM, Structure (Camb) 2005 Jan;13(1):99-109. PMID: 15642265

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