3G5Q:
reference: Atomic structure of a folate/FAD-dependent tRNA T54 methyltransferase., Nishimasu H, Ishitani R, Yamashita K, Iwashita C, Hirata A, Hori H, Nureki O, Proc Natl Acad Sci U S A. 2009 May 5. PMID: 19416846

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