2FZH:
reference: New insights into DHFR interactions: analysis of Pneumocystis carinii and mouse DHFR complexes with NADPH and two highly potent 5-(omega-carboxy(alkyloxy) trimethoprim derivatives reveals conformational correlations with activity and novel parallel ring stacking interactions., Cody V, Pace J, Chisum K, Rosowsky A, Proteins. 2006 Dec 1;65(4):959-69. PMID: 17019704

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