| SDH | serine dehydratase; sorbitol dehydrogenase; spinal dorsal horn; subdural hematoma; succinate dehydro... |
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| ALA.D | delta-amino-laevulinic acid dehydratase |
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| Delta-ALAD | Delta-aminolevulinic acid dehydratase |
| SDH | L-serine dehydratase |
| propanediol dehydratase | <enzyme> An enzyme that catalyses the dehydration of 1,2-propanediol to propionaldehyde. Chemical name: Propane-1,2-diol hydro-lyase Registry number: EC 4.2.1.28 (12 Dec 1998) |
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| scytalone dehydratase | <enzyme> Converts scytalone to 1,3,8-trihydroxynapthalene; on path to melanin biosynthesis Registry number: EC 4.2.1.94 (26 Jun 1999) |
| pterin-4a-carbinolamine dehydratase | <enzyme> Bifunctional protein which converts pterin-4a-carbinolamine to quinoid dihydrobiopterin and functions as dimerization cofactor for hnf-1alpha; deficiency results in an atypical form of phenylketonuria; proposed EC 4.2.1.96 Registry number: EC 4.2.1.- Synonym: pt-c dehydratase, phenylalanine hydroxylase-stimulating protein, pterin-4alpha-carbinolamine dehydratase, dcoh protein, dimerization cofactor of hnf-1alpha, 4a-hydroxytetrahydrobiopterin dehydratase, 4a-carbinolamine dehydratase, bh3oh dehydratase, 4alpha-carbinolamine dehydratase (26 Jun 1999) |
| pyranosone dehydratase | <enzyme> From phanerochaete chrysosporium; acts on several osones (glycosuloses) with the preferred substrate being d-glucosone which was converted by the enzyme to cortalcerone; the pyranose form of glucosone undergoes two enzymatic dehydrations to give cortalcerone on spontaneous cyclization Registry number: EC 4.2.1.- Synonym: aldos-2-ulose dehydratase (26 Jun 1999) |
| hydroperoxide dehydratase | <enzyme> Catalyses the formation of 12,13-epoxy-9,11,15-octadecatrienoic acid from 13-hydroperoxy-9,11,15-octadecatrienoic acid ; also acts on 13-hydroperoxy-9,11-octadecadienoic acid Registry number: EC 4.2.1.- Synonym: hydroperoxide dehydrase (26 Jun 1999) |
| D-3-hydroxyacyl CoA dehydratase | <enzyme> From rat liver peroxisomes; catalyses the epimerization of d-3-hydroxyacyl CoA by the dehydration of 3-hydroxyacyl-CoA to 2-trans-enoyl-CoA followed by the hydration of the latter enzyme to l-3-hydroxyacyl-CoA by enoyl-CoA hydratase (EC 4.2.1.17); is not active on 2-cis-enoyl CoA; consider also EC 4.2.1.74 Registry number: EC 4.2.1.- Synonym: d-3-hydroxyacyl coenzyme a dehydratase, beta-hydroxyacyl-CoA dehydratase (26 Jun 1999) |
| d-aminolevulinate dehydratase | <enzyme> An enzyme that catalyses the formation of porphobilinogen from two molecules of 5-aminolevulinic acid. Chemical name: 5-Aminolevulinate hydro-lyase (adding 5-aminolevulinate and cyclizing) Registry number: EC 4.2.1.24 (12 Dec 1998) |
| d-aminolevulinate dehydratase porphyria | An inherited disorder in which there is a deficiency of porphobilinogen synthase; d-aminolevulinate levels are elevated, leading to neurological disturbances. Synonym: porphobilinogen synthase porphyria. (05 Mar 2000) |
| dehydratase | A subclass (EC 4.2.1) of lyases (hydro-lyases) that remove H and OH as H2O from a substrate, leaving a double bond, or add a group to a double bond by the elimination of water from two substances to form a third; synthase is sometimes used when the synthetic aspect of the reaction is emphasized. Some trivial names of enzymes in this subclass bear the generic term hydratase, emphasizing the reverse reaction. (05 Mar 2000) |
| D-serine dehydratase | <enzyme> Do not confuse with l-serine dehydratase (mh) Chemical name: d-serine hydro-lyase (deaminating) Registry number: EC 4.2.1.14 Synonym: d-serine deaminase (26 Jun 1999) |
| D-(-)-tartrate dehydratase | <enzyme> From rhodopseudomonas spheroides; does not act on l-(+)-tartrate; forms oxaloacetate Registry number: EC 4.2.1.- Synonym: d-(-)-tartrate hydrolyase (26 Jun 1999) |
| dTDPglucose 4,6-dehydratase | <enzyme> Rfbb is also a phosphomanno-mutase; has been sequenced; genbank y10907 Registry number: EC 4.2.1.46 Synonym: tdp d-glucose oxidoreductase, thymidine-diphospho-d-glucose 4,6-dehydratase, rfbb protein, deltatdp-glucose dehydratase, tyla2 gene product, gdh gene product, rfbb gene product, mtmd gene product (26 Jun 1999) |
| D-xylo-aldonate dehydratase | <enzyme> Forms 2-keto-3-deoxy-d-xylonate (d-pentulosonic acid) Registry number: EC 4.2.1.- Synonym: d-xylonate dehydratase (26 Jun 1999) |
| threonine dehydratase | <enzyme> A pyridoxal-phosphate protein that catalyses the deamination of threonine to 2-ketobutyrate and ammonia. The role of this enzyme can be biosynthetic or biodegradative. In the former role it supplies 2-ketobutyrate required for isoleucine biosynthesis, while in the latter it is only involved in the breakdown of threonine to supply energy. Chemical name: L-Threonine hydro-lyase (deaminating) Registry number: EC 4.2.1.16 (12 Dec 1998) |
| 16 alpha-hydroxyprogesterone dehydratase | <enzyme> From rat intestinal anaerobic bacteria; forms 16-dehydroprogesterone Registry number: EC 4.2.1.- Synonym: 16 alpha-dehydratase (26 Jun 1999) |