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1.5.1.38: FMN reductase (NADPH)

This is an abbreviated version!
For detailed information about FMN reductase (NADPH), go to the full flat file.

Reaction

FMNH2
+
NADP+
=
FMN
+
NADPH
+
H+

Synonyms

(NADPH)-dependent flavin mononucleotide reductase, (NADPH)-dependent FMN reductase, BC_1619, EC 1.5.1.29, EC 1.6.8.1, flavin reductase P, FMN reductase, FRP, More, NAD(P)H:FMN reductase, NADPH specific FMN reductase, NADPH-flavin oxidoreductase, NADPH-FMN oxidoreductase, NADPH:FMN oxidoreductase, NADPH:FMN reductase, SsuE, ssueE, ycbP, ydgI

ECTree

     1 Oxidoreductases
         1.5 Acting on the CH-NH group of donors
             1.5.1 With NAD+ or NADP+ as acceptor
                1.5.1.38 FMN reductase (NADPH)

Inhibitors

Inhibitors on EC 1.5.1.38 - FMN reductase (NADPH)

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INHIBITOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
1,10-phenanthroline
-
0.005 M, 14% inhibition
AMP
-
0.01 M, 28% inhibition
dicoumarol
-
0.000325 M, 15% inhibition
FMN
when NADPH is supplied as pyrimidinic substrate, maximal reductase activity is obtained with 2.5-10 mM FMN, while higher FMN concentration led to 15% decrease in SsuE activity. When NADH is the pyrimidinic substrate, a distinct activity maximum is obtained at an FMN concentration of 0.5 mM, whereas concentrations higher than 2.5 mM led to more than 60% decrease in specific activity
KCN
-
0.01 M, 10% inhibition
N-ethylmaleimide
-
0.001 M, 26% inhibition
p-hydroxymercuribenzoate
-
0.001 M, 80% inhibition
rotenone
-
0.0004 M, 30% inhibition
additional information
-
FMN at concentrations over 0.002 mM significantly inhibits the coupled reaction in both light intensity and quantum yield, and shows apparent noncompetitive and competitive inhibition patterns against NADPH and luciferase, respectively. No inhibition of the NADPH oxidation is detected under identical conditions
-