3B0U:
reference: Molecular basis of dihydrouridine formation on tRNA., Yu F, Tanaka Y, Yamashita K, Suzuki T, Nakamura A, Hirano N, Suzuki T, Yao M, Tanaka I, Proc Natl Acad Sci U S A. 2011 Dec 6;108(49):19593-8. Epub 2011 Nov 28. PMID: 22123979

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