1JS1:
reference: Crystal structure of a transcarbamylase-like protein from the anaerobic bacterium Bacteroides fragilis at 2.0 A resolution., Shi D, Gallegos R, DePonte J 3rd, Morizono H, Yu X, Allewell NM, Malamy M, Tuchman M, J Mol Biol 2002 Jul 19;320(4):899-908. PMID: 12095263

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