| 1QX4: reference: The structure of the S127P mutant of cytochrome b5 reductase that causes methemoglobinemia shows the AMP moiety of the flavin occupying the substrate binding site., Bewley MC, Davis CA, Marohnic CC, Taormina D, Barber MJ, Biochemistry 2003 Nov 18;42(45):13145-51. PMID: 14609324 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).