| SE | Squalene epoxidase |
|---|---|
| AE | Aldrin epoxidase |
| SQS | Squalene synthase |
| SHC | Squalene-hopene cyclase |
| squalene epoxidase | <enzyme> An enzyme that catalyses the conversion of squalene to squalene 2,3-oxide in the endoplasmic reticulum; a required step in order for cyclization to occur, resulting in the synthesis of the first sterol, lanosterol, in steroidogenesis; uses NADPH. (05 Mar 2000) |
|---|---|
| squalene epoxidase-cyclase | <chemical> Consists of squalene epoxidase (EC 1.14.99.7) plus 2,3-oxidosqualene lanosterol-cyclase (EC 5.4.99.7) Chemical name: squalene-2,3-oxide lanosterol cyclase (26 Jun 1999) |
| squalene | <chemical> Chemical name: 2,6,10,14,18,22-Tetracosahexaene, 2,6,10,15,19,23-hexamethyl-, (all-E)- (12 Dec 1998) |
|---|---|
| squalene cyclase | <enzyme> Nonoxidative conversion of squalene to tetrahymenol; does not go via 2,3-oxidosqualene Registry number: EC 4.- Synonym: squalene-tetrahydromanol cyclase (26 Jun 1999) |
| squalene-hopene cyclase | <enzyme> From bacillus acidocaldarius; cyclises squalene into hopanoid triterpenes Registry number: EC 5.4.99.- Synonym: shc gene product (26 Jun 1999) |
| squalene synthase | <enzyme> An enzyme that catalyses the formation of squalene from two molecules of farnesylpyrophosphate using NADPH and concomitant production of two molecules of pyrophosphate. (05 Mar 2000) |
| squalene synthetase | <enzyme> Catalyses the rearrangement and reduction of the cyclopropane compound, presqualene pyrophosphate to form squalene, with NADPH as the coenzyme. Registry number: EC 1.3.- (12 Dec 1998) |
| beta-cyclohexenyl carotenoid epoxidase | <enzyme> Isolated from the pepper capsicum annuum; genbank x91491 Registry number: EC 1.14.14.- Synonym: beta-chc epoxidase (26 Jun 1999) |
| violaxanthin de-epoxidase | <enzyme> Requires ascorbate, mechanism presumably reduction, then dehydration to form zeaxanthin Registry number: EC 1.- (26 Jun 1999) |
| vitamin K epoxidase | <enzyme> Reductase is the reverse reaction of the epoxidase Registry number: EC 1.14.99.- Synonym: vitamin k epoxide reductase, menadione epoxide reductase, vitamin k 2,3-epoxide reductase, phylloquinone epoxide reductase, vitamin ko reductase (26 Jun 1999) |
| zeaxanthin epoxidase | <enzyme> An o2-dependent NADPH-dependent epoxidase; catalyses the epoxidation of zeaxanthin to violaxanthin via antheraxanthin; active at the stromal side of the thylakoids of green plants Registry number: EC 1.- Synonym: zea-epoxidase (26 Jun 1999) |
| (3-re,4-si)-2,5-dihydroxyacetanilide epoxidase | Forms the 3-re, 4-si-epoxyquinone of 2,5-dihydroxyacetanilide Registry number: EC 1.14.99.- Synonym: DNA epoxidase II (26 Jun 1999) |
| (3-si,4-re)-2,5-dihydroxyacetanilide epoxidase | Forms the 3-si,4-re epoxyquinone of 2,5-dihydroxyacetanilide Registry number: EC 1.14.99.- Synonym: DNA epoxidase i (26 Jun 1999) |
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