(S)-2-hydroxy-acid oxidase

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with oxygen as acceptor. The systematic name of this enzyme class is (S)-2-hydroxy-acid:oxygen 2-oxidoreductase. Other names in common use include glycolate oxidase, hydroxy-acid oxidase A, hydroxy-acid oxidase B, glycolate oxidase, oxidase, L-2-hydroxy acid, hydroxyacid oxidase A, L-alpha-hydroxy acid oxidase, and L-2-hydroxy acid oxidase. This enzyme participates in glyoxylate and dicarboxylate metabolism. It employs one cofactor, FMN.

Structural studies

As of late 2007, 5 structures have been solved for this class of enzymes, with PDB accession codes 1AL7, 1AL8, 1GYL, 1TB3, and 2NZL.

References

Blanchard M, Green DE, Nocito-Carroll V, Ratner S (1946). "l-Hydroxy acid oxidase" (PDF). J. Biol. Chem. 163 (1): 137–144.
FRIGERIO NA, HARBURY HA (1958). "Preparation and some properties of crystalline glycolic acid oxidase of spinach". J. Biol. Chem. 231 (1): 135–57. PMID 13538955.
KUN E, DECHARY JM, PITOT HC (1954). "The oxidation of glycolic acid by a liver enzyme". J. Biol. Chem. 210 (1): 269–80. PMID 13201588.
Nakano M, Danowski TS (1966). "Crystalline mammalian L-amino acid oxidase from rat kidney mitochondria". J. Biol. Chem. 241 (9): 2075–83. PMID 5946631.
Nakano M, Ushijima Y, Saga M, Tsutsumi Y, Asami H (1968). "Aliphatic L-alpha-hydroxyacid oxidase from rat livers: purification and properties". Biochim. Biophys. Acta. 167 (1): 9–22. doi:10.1016/0005-2744(68)90273-8. PMID 5686300.
Phillips DR, Duley JA, Fennell DJ, Holmes RS (1976). "The self-association of L-alpha hydroxyacid oxidase". Biochim. Biophys. Acta. 427 (2): 679–87. doi:10.1016/0005-2795(76)90211-7. PMID 1268224.
Schuman M, Massey V (1971). "Purification and characterization of glycolic acid oxidase from pig liver". Biochim. Biophys. Acta. 227 (3): 500–20. doi:10.1016/0005-2744(71)90003-9. PMID 5569122.

Oxidoreductases: alcohol oxidoreductases (EC 1.1)

1.1.1: NAD/NADP acceptor	3-hydroxyacyl-CoA dehydrogenase 3-hydroxybutyryl-CoA dehydrogenase Alcohol dehydrogenase Aldo-keto reductase 1A1 1B1 1B10 1C1 1C3 1C4 7A2 Aldose reductase Beta-Ketoacyl ACP reductase Carbohydrate dehydrogenases Carnitine dehydrogenase D-malate dehydrogenase (decarboxylating) DXP reductoisomerase Glucose-6-phosphate dehydrogenase Glycerol-3-phosphate dehydrogenase HMG-CoA reductase IMP dehydrogenase Isocitrate dehydrogenase Lactate dehydrogenase L-threonine dehydrogenase L-xylulose reductase Malate dehydrogenase Malate dehydrogenase (decarboxylating) Malate dehydrogenase (NADP+) Malate dehydrogenase (oxaloacetate-decarboxylating) Malate dehydrogenase (oxaloacetate-decarboxylating) (NADP+) Phosphogluconate dehydrogenase Sorbitol dehydrogenase Hydroxysteroid dehydrogenase: 3 Beta 3-beta-HSD NSDHL 11 Beta HSD11B1 HSD11B2 17 Beta

1.1.2: cytochrome acceptor	D-lactate dehydrogenase (cytochrome) D-lactate dehydrogenase (cytochrome c-553) Mannitol dehydrogenase (cytochrome)

1.1.3: oxygen acceptor	Glucose oxidase L-gulonolactone oxidase Xanthine oxidase

1.1.4: disulfide as acceptor	Vitamin K epoxide reductase Vitamin-K-epoxide reductase (warfarin-insensitive)

1.1.5: quinone/similar acceptor	Malate dehydrogenase (quinone) Quinoprotein glucose dehydrogenase

1.1.99: other acceptors	Choline dehydrogenase L2HGDH

Enzymes

Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Catalytically perfect enzyme Coenzyme Cofactor Enzyme catalysis Enzyme kinetics Lineweaver–Burk plot Michaelis–Menten kinetics

Regulation	Allosteric regulation Cooperativity Enzyme inhibitor

Classification	EC number Enzyme superfamily Enzyme family List of enzymes

Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list)

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