1GRC:
reference: Crystal structure of glycinamide ribonucleotide transformylase from Escherichia coli at 3.0 A resolution. A target enzyme for chemotherapy., Chen P, Schulze-Gahmen U, Stura EA, Inglese J, Johnson DL, Marolewski A, Benkovic SJ, Wilson IA, J Mol Biol 1992 Sep 5;227(1):283-92. PMID: 1522592

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