EC 1 - Oxidoreductases
EC 1.5 - Acting on the CH-NH group of donors
EC 1.5.1 - With NAD+ or NADP+ as acceptor
EC 1.5.1.38 - FMN reductase (NADPH)
IntEnz view
ENZYME view
IntEnz Enzyme Nomenclature
EC 1.5.1.38
Names
Accepted name:
FMN reductase (NADPH)
Other
names:
FRP
flavin reductase P
SsuE
flavin reductase P
SsuE
Systematic name:
FMNH2:NADP+ oxidoreductase
Reaction
- FMNH2 + NADP+ = FMN + NADPH + H+
Cofactor
Comments:
The enzymes from bioluminescent bacteria contain FMN [4], while the enzyme from Escherichia coli does not [8]. The enzyme often forms a two-component system with monooxygenases such as luciferase. Unlike EC 1.5.1.39, this enzyme does not use NADH as acceptor [1,2]. While FMN is the preferred substrate, the enzyme can also use FAD and riboflavin with lower activity [3,6,8].
Links to other databases
Enzymes and pathways:
NC-IUBMB
,
BRENDA
,
DIAGRAM
,
ExplorEnz
,
ENZYME@ExPASy
,
KEGG
,
MetaCyc
,
UniPathway
Gene Ontology:
GO:0052873
UniProtKB/Swiss-Prot:
FRP_VIBHA
MSUE_PSEAE
MSUE_PSEPK
NFRA1_BACSU
SSUE_ECOLI
SSUE_PSEPK
SSUE_PSEPU
VLMR_STRVF
References
-
Identification of NADH-specific and NADPH-specific FMN reductases in Beneckea harveyi.Eur. J. Biochem. 57 : 461-467 (1975). [PMID: 1175652]
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Purification and properties of the NADH and NADPH specific FMN oxidoreductases from Beneckea harveyi.Biochemistry 16 : 2932-2936 (1977). [PMID: 880288]
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Studies of the control of luminescence in Beneckea harveyi: properties of the NADH and NADPH:FMN oxidoreductases.Biochemistry 17 : 672-678 (1978). [PMID: 23827]
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Vibrio harveyi NADPH-flavin oxidoreductase: cloning, sequencing and overexpression of the gene and purification and characterization of the cloned enzyme.J. Bacteriol. 176 : 3552-3558 (1994). [PMID: 8206832]
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Flavin reductase P: structure of a dimeric enzyme that reduces flavin.Biochemistry 35 : 13531-13539 (1996). [PMID: 8885832]
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Vibrio harveyi NADPH:FMN oxidoreductase: preparation and characterization of the apoenzyme and monomer-dimer equilibrium.Arch. Biochem. Biophys. 337 : 89-95 (1997). [PMID: 8990272]
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Mechanism of reduced flavin transfer from Vibrio harveyi NADPH-FMN oxidoreductase to luciferase.Biochemistry 37 : 14623-14629 (1998). [PMID: 9772191]
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Characterization of a two-component alkanesulfonate monooxygenase from Escherichia coli.J. Biol. Chem. 274 : 26639-26646 (1999). [PMID: 10480865]
[EC 1.5.1.38 created 2011]