Protein Domain : FMN-dependent dehydrogenase IPR000262

Type  Domain
Description  A number of oxidoreductases that act on alpha-hydroxy acids and which are FMN-containing flavoproteins have been shown [ , , ] to be structurally related. These enzymes are:Lactate dehydrogenase ( ), which consists of a dehydrogenase domain and a haem-binding domain called cytochrome b2 and which catalyses the conversion of lactate into pyruvate. Glycolate oxidase ( ) ((S)-2-hydroxy-acid oxidase), a peroxisomal enzyme that catalyses the conversion of glycolate and oxygen to glyoxylate and hydrogen peroxide. Long chain alpha-hydroxy acid oxidase from rat ( ), a peroxisomal enzyme. Lactate 2-monooxygenase ( ) (lactate oxidase) from Mycobacterium smegmatis, which catalyses the conversion of lactate and oxygen to acetate, carbon dioxide and water. (S)-mandelate dehydrogenase from Pseudomonas putida (gene mdlB), which catalyses the reduction of (S)-mandelate to benzoylformate.The first step in the reaction mechanism of these enzymes is the abstraction of the proton from the α-carbon of the substrate producing a carbanion which can subsequently attach to the N5 atom of FMN. A conserved histidine has been shown [ ] to be involved in the removal of the proton. The region around this active site residue is highly conserved and contains an arginine residue which is involved in substrate binding.
Short Name  FMN-dep_DH

1 Child Features

0 Gene Families

526 Genes

1 Ontology Annotations

0 Parent Features

13 Publications

USDA
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