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Histidinol-phosphate transaminase

In enzymology, a histidinol-phosphate transaminase is an enzyme that catalyzes the chemical reaction L-histidinol phosphate + 2-oxoglutarate ⇌ {\displaystyle \rightleftharpoons } 3-imidazol-4-yl-2-oxopropyl phosphate + L-glutamate Thus, the two s ...

Homoisocitrate dehydrogenase

In enzymology, a homoisocitrate dehydrogenase is an enzyme that catalyzes the chemical reaction 1R,2S-1-hydroxybutane-1.2.4-tricarboxylate + NAD + ⇌ {\displaystyle \rightleftharpoons } 2-oxoadipate + CO 2 + NADH + H + Thus, the two substrates of ...

Homoserine kinase

In enzymology, a homoserine kinase is an enzyme that catalyzes the chemical reaction ATP + L-homoserine ⇌ {\displaystyle \rightleftharpoons } ADP + O-phospho-L-homoserine Thus, the two substrates of this enzyme are ATP and L-homoserine, whereas i ...

Homoserine O-acetyltransferase

In enzymology, a homoserine O-acetyltransferase is an enzyme that catalyzes the chemical reaction acetyl-CoA + L-homoserine ⇌ {\displaystyle \rightleftharpoons } CoA + O-acetyl-L-homoserine Thus, the two substrates of this enzyme are acetyl-CoA a ...

Homoserine O-succinyltransferase

In enzymology, a homoserine O-succinyltransferase is an enzyme that catalyzes the chemical reaction succinyl-CoA + L-homoserine ⇌ {\displaystyle \rightleftharpoons } CoA + O-succinyl-L-homoserine Thus, the two substrates of this enzyme are succin ...

Hyaluronate lyase

In enzymology, a hyaluronate lyase is an enzyme that catalyzes the chemical reaction Cleaves hyaluronate chains at a beta-D-GalNAc-1-> 4-beta-D-GlcA bond, ultimately breaking the polysaccharide down to 3-4-deoxy-beta-D-gluc-4-enuronosyl-N-acet ...

Hydrogen dehydrogenase (NADP+)

In enzymology, a hydrogen dehydrogenase is an enzyme that catalyzes the chemical reaction H 2 + NADP + ⇌ {\displaystyle \rightleftharpoons } H + + NADPH Thus, the two substrates of this enzyme are H 2 and NADP +, whereas its two products are H + ...

Hydroperoxide dehydratase

In enzymology, a hydroperoxide dehydratase is an enzyme that catalyzes the chemical reaction 9Z,11E,14Z-13S-hydroperoxyoctadeca-9.11.14-trienoate ⇌ {\displaystyle \rightleftharpoons } 9Z-13S-12.13-epoxyoctadeca-9.11-dienoate + H 2 O Hence, this e ...

Hydroxyacylglutathione hydrolase

In enzymology, a Hydroxyacylglutathione hydrolase is an enzyme that catalyzes the chemical reaction R-S-lactoylglutathione + water ⇌ {\displaystyle \rightleftharpoons } glutathione + a 2-hydroxy carboxylate Hence, this enzyme has two substrates, ...

Hydroxyethylthiazole kinase

In enzymology, a hydroxyethylthiazole kinase is an enzyme that catalyzes the chemical reaction ATP + 4-methyl-5-2-hydroxyethylthiazole ⇌ {\displaystyle \rightleftharpoons } ADP + 4-methyl-5-2-phosphonooxyethylthiazole Thus, the two substrates of ...

Hydroxyisourate hydrolase

In enzymology, a hydroxyisourate hydrolase is an enzyme that catalyzes the chemical reaction 5-hydroxyisourate + H 2 O ⇌ {\displaystyle \rightleftharpoons } 5-hydroxy-2-oxo-4-ureido-2.5-dihydro-1H-imidazole-5-carboxylate Thus, the two substrates ...

Hydroxylamine oxidoreductase

Hydroxylamine oxidoreductase is an enzyme found in the prokaryote Nitrosomonas europaea. It plays a critically important role in the biogeochemical nitrogen cycle as part of the metabolism of ammonia-oxidizing bacteria. The substrate is hydroxyla ...

Hydroxymandelonitrile lyase

In enzymology, a hydroxymandelonitrile lyase is an enzyme that catalyzes the chemical reaction S-4-hydroxymandelonitrile ⇌ {\displaystyle \rightleftharpoons } cyanide + 4-hydroxybenzaldehyde Hence, this enzyme has one substrate, S-4-hydroxymandel ...

Hydroxymethylglutaryl-CoA reductase

In enzymology, a Hydroxymethylglutaryl-CoA reductase is an enzyme that catalyzes the chemical reaction R-mevalonate + CoA + 2 NAD + ⇌ {\displaystyle \rightleftharpoons } 3-hydroxy-3-methylglutaryl-CoA + 2 NADH + 2 H + The 3 substrates of this enz ...

Hydroxymethylglutaryl-CoA reductase (NADPH)

In enzymology, a hydroxymethylglutaryl-CoA reductase is an enzyme that catalyzes the chemical reaction R-mevalonate + CoA + 2 NADP + ⇌ {\displaystyle \rightleftharpoons } S-3-hydroxy-3-methylglutaryl-CoA + 2 NADPH + 2 H + The 3 substrates of this ...

Hydroxypyruvate reductase

In enzymology, a hydroxypyruvate reductase is an enzyme that catalyzes the chemical reaction D-glycerate + NADP+ ⇌ {\displaystyle \rightleftharpoons } hydroxypyruvate + NADPH + H + The 3 substrates of this enzyme are D-glycerate, NAD +, and NADP ...

Imidazoleglycerol-phosphate dehydratase

In enzymology, an imidazoleglycerol-phosphate dehydratase is an enzyme that catalyzes the chemical reaction D-erythro-1-imidazol-4-ylglycerol 3-phosphate ⇌ {\displaystyle \rightleftharpoons } 3-imidazol-4-yl-2-oxopropyl phosphate + H 2 O Hence, t ...

Imidazolonepropionase

In enzymology, an imidazolonepropionase is an enzyme that catalyzes the chemical reaction S-3-5-oxo-4.5-dihydro-3H-imidazol-4-ylpropanoate + H 2 O ⇌ {\displaystyle \rightleftharpoons } N-formimidoyl-L-glutamate + H + Thus, the two substrates of t ...

Indolepyruvate decarboxylase

In enzymology, an indolepyruvate decarboxylase is an enzyme that catalyzes the chemical reaction 3-indol-3-ylpyruvate ⇌ {\displaystyle \rightleftharpoons } 2-indol-3-ylacetaldehyde + CO 2 Hence, this enzyme has one substrate, 3-indol-3-ylpyruvate ...

Inositol-1.4-bisphosphate 1-phosphatase

In enzymology, an inositol-1.4-bisphosphate 1-phosphatase is an enzyme that catalyzes the chemical reaction 1D-myo-inositol 1.4-bisphosphate + H 2 O ⇌ {\displaystyle \rightleftharpoons } 1D-myo-inositol 4-phosphate + phosphate Thus, the two subst ...

Inositol-tetrakisphosphate 1-kinase

In enzymology, an inositol-tetrakisphosphate 1-kinase is an enzyme that catalyzes the chemical reaction ATP + 1D-myo-inositol 3.4.5.6-tetrakisphosphate ⇌ {\displaystyle \rightleftharpoons } ADP + 1D-myo-inositol 1.3.4.5.6-pentakisphosphate Thus, ...

Inositol-trisphosphate 3-kinase

Inositol trisphosphate 3-kinase, abbreviated here as ITP3K, is an enzyme that facilitates a phospho-group transfer from adenosine triphosphate to 1D-myo-inositol 1.4.5-trisphosphate. This enzyme belongs to the family of transferases, specifically ...

Inulin fructotransferase (DFA-III-forming)

In enzymology, an inulin fructotransferase is an enzyme that catalyzes the chemical reaction Produces alpha-D-fructofuranose beta-D-fructofuranose 1.2:2.3-dianhydride DFA III by successively eliminating the diminishing 2-> 1-beta-D-fructan inu ...

Iron-chelate-transporting ATPase

In enzymology, an iron-chelate-transporting ATPase is an enzyme that catalyzes the chemical reaction ATP + H 2 O + iron chelateout ⇌ {\displaystyle \rightleftharpoons } ADP + phosphate + iron chelatein The 3 substrates of this enzyme are ATP, H 2 ...

Isochorismatase

In enzymology, an isochorismatase is an enzyme that catalyzes the chemical reaction isochorismate + H 2 O ⇌ {\displaystyle \rightleftharpoons } 2.3-dihydroxy-2.3-dihydrobenzoate + pyruvate Thus, the two substrates of this enzyme are isochorismate ...

Isocitrate lyase

Isocitrate lyase, or ICL, is an enzyme in the glyoxylate cycle that catalyzes the cleavage of isocitrate to succinate and glyoxylate. Together with malate synthase, it bypasses the two decarboxylation steps of the tricarboxylic acid cycle and is ...

Isoleucine-tRNA ligase

In enzymology, an isoleucine-tRNA ligase is an enzyme that catalyzes the chemical reaction ATP + L-isoleucine + tRNAIle ⇌ {\displaystyle \rightleftharpoons } AMP + diphosphate + L-isoleucyl-tRNAIle The 3 substrates of this enzyme are ATP, L-isole ...

Isomaltulose synthase

In enzymology, an isomaltulose synthase is an enzyme that catalyzes the chemical reaction sucrose ⇌ {\displaystyle \rightleftharpoons } 6-O-Alpha-D-Glucopyranosyl-D-Fructofuranose Hence, this enzyme has one substrate, sucrose, and one product, 6- ...

Isopenicillin N synthase

Isopenicillin N synthase is a non-heme iron-dependent enzyme belonging to the oxidoreductase family. This enzyme catalyzes the formation of isopenicillin N from δ-- L -cysteinyl- D -valine. N -- L -cysteinyl- D -valine + O 2 ⇌ {\displaystyle \rig ...

Isopropanol dehydrogenase (NADP+)

In enzymology, an isopropanol dehydrogenase is an enzyme that catalyzes the chemical reaction propan-2-ol + NADP + ⇌ {\displaystyle \rightleftharpoons } acetone + NADPH + H + Thus, the two substrates of this enzyme are propan-2-ol and NADP +, whe ...

K+-transporting ATPase

In enzymology, a K + -transporting ATPase is an enzyme that catalyzes the chemical reaction ATP + H 2 O + K + out ⇌ ADP + phosphate + K + in The 3 substrates of this enzyme are ATP, H 2 O, and K +, whereas its 3 products are ADP, phosphate, and K ...

Kanamycin kinase

Aminoglycoside-3-phosphotransferase), also known as aminoglycoside kinase, is an enzyme that primarily catalyzes the addition of phosphate from ATP to the 3-hydroxyl group of a 4.6-disubstituted aminoglycoside, such as kanamycin. However, APH has ...

Ketol-acid reductoisomerase

In enzymology, a ketol-acid reductoisomerase is an enzyme that catalyzes the chemical reaction R-2.3-dihydroxy-3-methylbutanoate + NADP + ⇌ {\displaystyle \rightleftharpoons } S-2-hydroxy-2-methyl-3-oxobutanoate + NADPH + H + Thus, the two substr ...

Kynurenine 3-monooxygenase

In enzymology, a kynurenine 3-monooxygenase is an enzyme that catalyzes the chemical reaction L-kynurenine + NADPH + H + + O 2 ⇌ {\displaystyle \rightleftharpoons } 3-hydroxy-L-kynurenine + NADP + + H 2 O Kynurenine 3-monooxygenase is the express ...

Kynurenine-oxoglutarate transaminase

In enzymology, a kynurenine-oxoglutarate transaminase is an enzyme that catalyzes the chemical reaction L-kynurenine + 2-oxoglutarate ⇌ {\displaystyle \rightleftharpoons } 4-2-aminophenyl-2.4-dioxobutanoate + L-glutamate Thus, the two substrates ...

L-aminoadipate-semialdehyde dehydrogenase

In enzymology, a L-aminoadipate-semialdehyde dehydrogenase is an enzyme that catalyzes the chemical reaction L-2-aminoadipate 6-semialdehyde + NADP+ + H 2 O ⇌ {\displaystyle \rightleftharpoons } L-2-aminoadipate + NADPH + H + The 4 substrates of ...

L-ascorbate oxidase

In enzymology, a L-ascorbate oxidase is an enzyme that catalyzes the chemical reaction 2 L-ascorbate + O 2 ⇌ {\displaystyle \rightleftharpoons } 2 dehydroascorbate + 2 H 2 O Thus, the two substrates of this enzyme are L-ascorbate and O 2, whereas ...

L-ascorbate peroxidase

In enzymology, a L-ascorbate peroxidase is an enzyme that catalyzes the chemical reaction L-ascorbate + H 2 O 2 ⇌ {\displaystyle \rightleftharpoons } dehydroascorbate + 2 H 2 O Thus, the two substrates of this enzyme are L-ascorbate and H 2 O 2, ...

L-aspartate oxidase

In enzymology, a L-aspartate oxidase is an enzyme that catalyzes the chemical reaction L-aspartate + H 2 O + O 2 ⇌ {\displaystyle \rightleftharpoons } oxaloacetate + NH 3 + H 2 O 2 The 3 substrates of this enzyme are L-aspartate, H 2 O, and O 2, ...

L-fuculose-phosphate aldolase

In enzymology, a L -fuculose-phosphate aldolase is an enzyme that catalyzes the chemical reaction L -fuculose-1-phosphate ⇌ {\displaystyle \rightleftharpoons } glycerone phosphate + S-lactaldehyde Hence, this enzyme has one substrate, L -fuculose ...

L-gulonate 3-dehydrogenase

In enzymology, a L-gulonate 3-dehydrogenase is an enzyme that catalyzes the chemical reaction L-gulonate + NAD + ⇌ {\displaystyle \rightleftharpoons } 3-dehydro-L-gulonate + NADH + H + Thus, the two substrates of this enzyme are L-gulonate and NA ...

L-iditol 2-dehydrogenase

In enzymology, a L-iditol 2-dehydrogenase is an enzyme that catalyzes the chemical reaction L-iditol + NAD + ⇌ L-sorbose + NADH + H + Thus, the two substrates of this enzyme are L-iditol and NAD +, whereas its 3 products are L-sorbose, NADH, and ...

L-ornithine N5 monooxygenase

In enzymology, an ornithine monooxygenase is an enzyme that catalyzes the chemical reaction L-ornithine + NADPH + O 2 ⇌ {\displaystyle \rightleftharpoons } N5-hydroxy-L-ornithine + NADP + + H 2 O Thus, the three substrates of this enzyme are L-or ...

L-rhamnonate dehydratase

In enzymology, a L-rhamnonate dehydratase is an enzyme that catalyzes the chemical reaction L-rhamnonate ⇌ {\displaystyle \rightleftharpoons } 2-dehydro-3-deoxy-L-rhamnonate + H 2 O Hence, this enzyme has one substrate, L-rhamnonate, and two prod ...

L-rhamnose isomerase

In enzymology, a L-rhamnose isomerase is an enzyme that catalyzes the chemical reaction L-rhamnose ⇌ {\displaystyle \rightleftharpoons } L-rhamnulose Hence, this enzyme has one substrate, L-rhamnose, and one product, L-rhamnulose. This enzyme bel ...

L-ribulose-5-phosphate 4-epimerase

In enzymology, a L -ribulose-5-phosphate 4-epimerase is an enzyme that catalyzes the interconversion of ribulose 5-phosphate and xylulose 5-phosphate in the oxidative phase of the Pentose phosphate pathway. L -ribulose 5-phosphate ⇌ {\displaystyl ...

L-threonine 3-dehydrogenase

In enzymology, a L-threonine 3-dehydrogenase is an enzyme that catalyzes the chemical reaction L-threonine + NAD + ⇌ {\displaystyle \rightleftharpoons } L-2-amino-3-oxobutanoate + NADH + H + Thus, the two substrates of this enzyme are L-threonine ...

L,L-diaminopimelate aminotransferase

In enzymology, a L,L-diaminopimelate aminotransferase is an enzyme that catalyzes the chemical reaction LL-2.6-diaminoheptanedioate + 2-oxoglutarate ⇌ {\displaystyle \rightleftharpoons } S-2.3.4.5-tetrahydropyridine-2.6-dicarboxylate + L-glutamat ...

Lactaldehyde dehydrogenase

In enzymology, a lactaldehyde dehydrogenase is an enzyme that catalyzes the chemical reaction S-lactaldehyde + NAD + + H 2 O ⇌ {\displaystyle \rightleftharpoons } S-lactate + NADH + 2 H + The 3 substrates of this enzyme are S-lactaldehyde, NAD +, ...

Lactaldehyde reductase

In enzymology, a lactaldehyde reductase is an enzyme that catalyzes the chemical reaction R-propane-1.2-diol:NAD + oxidoreductase. Other names in common use include propanediol:nicotinamide adenine dinucleotide NAD + oxidoreductase, and L-lactald ...

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