1YLP:
reference: Atomic Resolution Structures of CTX-M beta-Lactamases: Extended Spectrum Activities from Increased Mobility and Decreased Stability., Chen Y, Delmas J, Sirot J, Shoichet B, Bonnet R, J Mol Biol 2005 Apr 29;348(2):349-62. PMID: 15811373

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