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4k1x is a 2 chain structure with sequence from Rhodobacter capsulatus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
FENR_RHOCA Transports electrons between flavodoxin or ferredoxin and NADPH.[1][2][3]
References
↑ Bittel C, Tabares LC, Armesto M, Carrillo N, Cortez N. The oxidant-responsive diaphorase of Rhodobacter capsulatus is a ferredoxin (flavodoxin)-NADP(H) reductase. FEBS Lett. 2003 Oct 23;553(3):408-12. PMID:14572660
↑ Nogues I, Perez-Dorado I, Frago S, Bittel C, Mayhew SG, Gomez-Moreno C, Hermoso JA, Medina M, Cortez N, Carrillo N. The ferredoxin-NADP(H) reductase from Rhodobacter capsulatus: molecular structure and catalytic mechanism. Biochemistry. 2005 Sep 6;44(35):11730-40. PMID:16128574 doi:10.1021/bi0508183
↑ Bortolotti A, Sanchez-Azqueta A, Maya CM, Velazquez-Campoy A, Hermoso JA, Medina M, Cortez N. The C-terminal extension of bacterial flavodoxin-reductases: Involvement in the hydride transfer mechanism from the coenzyme. Biochim Biophys Acta. 2013 Sep 6;1837(1):33-43. doi:, 10.1016/j.bbabio.2013.08.008. PMID:24016470 doi:http://dx.doi.org/10.1016/j.bbabio.2013.08.008