Page last updated: 2024-10-24

FMN reductase (NADPH) activity

Definition

Target type: molecularfunction

Catalysis of the reaction: FMNH2 + NADP+ = FMN + NADPH + 2 H+. [RHEA:21624]

FMN reductase (NADPH) activity catalyzes the transfer of electrons from NADPH to flavin mononucleotide (FMN). This reaction is essential for a wide range of cellular processes, including the reduction of oxidized glutathione, the biosynthesis of fatty acids, and the detoxification of reactive oxygen species. The enzyme utilizes NADPH as a reducing agent, transferring a hydride ion to FMN, which is then reduced to FMNH2. This reduced form of FMN can then be used in a variety of downstream reactions. For example, FMNH2 can donate electrons to other proteins involved in electron transport chains, or it can be used to reduce specific substrates, such as oxidized glutathione or molecular oxygen.'
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Proteins (1)

ProteinDefinitionTaxonomy
Flavin reductase (NADPH)A flavin reductase that is encoded in the genome of human. [PRO:DNx, UniProtKB:P30043]Homo sapiens (human)

Compounds (7)

CompoundDefinitionClassesRoles
erythrosineFluoresceins: A family of spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one derivatives. These are used as dyes, as indicators for various metals, and as fluorescent labels in immunoassays.
sulfasalazinesulfasalazine : An azobenzene consisting of diphenyldiazene having a carboxy substituent at the 4-position, a hydroxy substituent at the 3-position and a 2-pyridylaminosulphonyl substituent at the 4'-position.

Sulfasalazine: A drug that is used in the management of inflammatory bowel diseases. Its activity is generally considered to lie in its metabolic breakdown product, 5-aminosalicylic acid (see MESALAMINE) released in the colon. (From Martindale, The Extra Pharmacopoeia, 30th ed, p907)
olsalazineolsalazine : An azobenzene that consists of two molecules of 4-aminosalicylic acid joined by an azo linkage. A prodrug for mesalazine, an anti-inflammatory drug, it is used (as the disodium salt) in the treatment of inflammatory bowel disease.

olsalazine: cpd with 2 salicylate molecules linked together by an azo bond
azobenzenes;
dicarboxylic acid
non-steroidal anti-inflammatory drug;
prodrug
tamibarotenetamibarotene : A dicarboxylic acid monoamide resulting from the condensation of one of the carboxy groups of terephthalic acid with the amino group of 5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-amine.

tamibarotene: has retinoid-binding activity
dicarboxylic acid monoamide;
retinoid;
tetralins
antineoplastic agent;
retinoic acid receptor alpha/beta agonist
febuxostatfebuxostat : A 1,3-thiazolemonocarboxylic acid that is 4-methyl-1,3-thiazole-5-carboxylic acid which is substituted by a 3-cyano-4-(2-methylpropoxy)phenyl group at position 2. It is an orally-active, potent, and selective xanthine oxidase inhibitor used for the treatment of chronic hyperuricaemia in patients with gout.

Febuxostat: A thiazole derivative and inhibitor of XANTHINE OXIDASE that is used for the treatment of HYPERURICEMIA in patients with chronic GOUT.
1,3-thiazolemonocarboxylic acid;
aromatic ether;
nitrile
EC 1.17.3.2 (xanthine oxidase) inhibitor
deferasiroxdeferasirox : A member of the class of triazoles, deferasirox is 1,2,4-triazole substituted by a 4-carboxyphenyl group at position 1 and by 2-hydroxyphenyl groups at positions 3 and 5. An orally active iron chelator, it is used to manage chronic iron overload in patients receiving long-term blood transfusions.

Deferasirox: A triazole and benzoate derivative that acts as a selective iron chelator. It is used in the management of chronic IRON OVERLOAD due to blood transfusion or non-transfusion dependent THALASSEMIA.
benzoic acids;
monocarboxylic acid;
phenols;
triazoles
iron chelator
ptc 124oxadiazole;
ring assembly