6HOO:
reference: Substrate Specificity of OXA-48 after beta5-beta6 Loop Replacement., Dabos L, Zavala A, Bonnin RA, Beckstein O, Retailleau P, Iorga BI, Naas T, ACS Infect Dis. 2020 Mar 19. doi: 10.1021/acsinfecdis.9b00452. PMID: 32156115

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