4MBB:
reference: Structure of Human PIR1, an Atypical Dual-Specificity Phosphatase., Sankhala RS, Lokareddy RK, Cingolani G, Biochemistry. 2014 Feb 11;53(5):862-71. doi: 10.1021/bi401240x. Epub 2014 Jan 31. PMID: 24447265

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