1GR1:
reference: Probing the role of glutamic acid 139 of Anabaena ferredoxin-NADP+ reductase in the interaction with substrates., Faro M, Frago S, Mayoral T, Hermoso JA, Sanz-Aparicio J, Gomez-Moreno C, Medina M, Eur J Biochem 2002 Oct;269(20):4938-47. PMID: 12383252

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