| OA | obstructive apnea; occipital artery; occipito-anterior; occiput anterior; octanoic acid; ocular albi... |
|---|---|
| PAA | partial agonist activity; phenylacetic acid; phosphonoacetic acid; physical abilities analysis; plas... |
| ASA | acetylsalicylic acid; active systemic anaphylaxis; Adams-Stokes attack; American Society of Anesthes... |
| CA | anterior commissure [Lat. commissura anterior]; calcium antagonist; California [rabbit]; cancer; Can... |
| DHA | dehydroacetic acid; dehydroascorbic acid; dehydroepiandrosterone; dihydroacetic acid; dihydroxyaceto... |
| retinol 4-hydroxylase | <enzyme> Converts retinol to 4-hydroxyretinol in presence of NADPH Registry number: EC 1.14.13.- (26 Jun 1999) |
|---|---|
| chlorsulfuron-5-hydroxylase | <enzyme> Hydroxylates the herbicide chlorsulfuron; 5-hydroxychlorsulfuron is not observed intact in plants but is transformed immediately to a glucose conjugate Registry number: EC 1.14.99.- (26 Jun 1999) |
| cholesterol 26-hydroxylase | <enzyme> Cyt p-450 dependent, ferredoxin involved Registry number: EC 1.14.15.- (26 Jun 1999) |
| mevastatin hydroxylase | <enzyme> Hydroxylates ml-236b (mevastatin) to pravastatin; requires NADH-cytochrome p-450 reductase Registry number: EC 1.14.13.- Synonym: cytochrome p-450sca monoxygenase, cytochrome p-450(sca) (26 Jun 1999) |
| phenylalanine 4-hydroxylase | <enzyme> An enzyme that catalyses the oxidation of l-phenylalanine to l-tyrosine with O2 and tetrahydrobiopterin (the latter forming the dihydro derivative) which is reduced by NADPH and a reductase to the active form; a deficiency of either of these enzymes will result in phenylketonuria. Synonym: phenylalanine 4-hydroxylase. (05 Mar 2000) |
| phenylalanine hydroxylase | <enzyme> An enzyme of the oxidoreductase class that catalyses the reaction l-phenylalanine, tetrahydrobiopterin, and oxygen to yield l-tyrosine, dihydrobiopterin, and water, the reaction synthesizing tyrosine from phenylalanine. Chemical name: L-Phenylalanine,tetrahydrobiopterin:oxygen oxidoreductase (4-hydroxylating) Registry number: EC 1.14.16.1 (12 Dec 1998) |
| phenylalanine hydroxylase phosphatase | <enzyme> Catalyses dephosphorylation of phosphorylated phenylalanine hydroxylase Registry number: EC 3.1.3.- Synonym: phe hydroxylase phosphatase (26 Jun 1999) |
| phytanoyl-coenzyme A hydroxylase | <enzyme> Mutations in gene pahx result in refsum disease; amino acid sequence given in second source; genbank af023462-3 Registry number: EC 1.14.- Synonym: phytanoyl-CoA hydroxylase, pahx protein, pahx gene product (26 Jun 1999) |
| warfarin-7-hydroxylase | <enzyme> Hydroxylates warfarin in presence of cytochrome p-450 and NADPH Registry number: EC 1.14.13.- (26 Jun 1999) |
| corticosterone 15alpha-hydroxylase | <enzyme> Use of cytochrome p-450coh in which phe209 is replaced by asn gives the cytochrome p-450coh a high corticosterone 15alpha hydroxylase activity instead of a coumarin hydroxylase activity Registry number: EC 1.14.99.- Synonym: co 15-hydroxylase (26 Jun 1999) |
| coumarin hydroxylase | <enzyme> Different preparations hydroxylate at position 3 and position 7; if cytochrome p-450coh is mutated at position 209, its substrate specificity is changed from coumarin hydroxylation to steroid hydroxylation Registry number: EC 1.14.99.- Synonym: cytochrome p-450coh, cytochrome p-4502a-5, cyp2a-5 gene product, coumarin 7-hydroxylase, cytochrome p-450 2a6, cyp2a6, cytochrome p-450 2a3, cyp2a3, p450 2a5, dhea hydroxylase, cyp2a5 (26 Jun 1999) |
| cymA hydroxylase reductase | <enzyme> Flavoprotein electron transport reductase from pseudomonas aureofaciens; genbank u86603 Registry number: EC 1.- Synonym: p-cymene methyl hydroxylase reductase, cyma gene product (26 Jun 1999) |
| cytochrome P-450-dependent digitoxin 12beta-hydroxylase | <enzyme> Isolated from digitalis lantata cell cultures Registry number: EC 1.14.99.- Synonym: digitoxin 12beta-hydroxylase (26 Jun 1999) |
| progesterone-6-hydroxylase | <enzyme> Cytochrome p-450 2c3 with valine at position 364 which confers 6beta-hydroxylase activity; see also record for cyp2c3 gene product Registry number: EC 1.14.99.- Synonym: progesterone 6beta-hydroxylase, cytochrome p450 2c3v (26 Jun 1999) |
| prolyl hydroxylase | Specific proline residues on the amino side of a glycine residue in collagen become hydroxylated at C4, before the polypeptides become helical, by the activity of prolyl hydroxylase. This enzyme has a ferrous ion at the active site and a reducing agent such as ascorbate is necessary to maintain the iron in the ferrous state. The presence of hydroxyproline is essential to produce stable triple helical tropocollagen, hence the problems caused by ascorbate deficiency in scurvy. This unusual amino acid is also present in considerable amounts in the major glycoprotein of primary plant cell walls (see HRGP). (18 Nov 1997) |