5O9H:
reference: Structure of the complement C5a receptor bound to the extra-helical antagonist NDT9513727., Robertson N, Rappas M, Dore AS, Brown J, Bottegoni G, Koglin M, Cansfield J, Jazayeri A, Cooke RM, Marshall FH, Nature. 2018 Jan 3;553(7686):111-114. doi: 10.1038/nature25025. PMID: 29300009

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