2JFS:
reference: Insights into the catalytic mechanism of PPM Ser/Thr phosphatases from the atomic resolution structures of a mycobacterial enzyme., Bellinzoni M, Wehenkel A, Shepard W, Alzari PM, Structure. 2007 Jul;15(7):863-72. PMID: 17637345

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