| 3-dehydroquinate dehydratase | Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145) | Catalyzes a trans-dehydration via an enolate intermediate. | 5 | Details |
| 3-dehydroquinate dehydratase | Helicobacter pylori (strain ATCC 700392 / 26695) | Catalyzes a trans-dehydration via an enolate intermediate. | 2 | Details |
| 3-dehydroquinate dehydratase | Mycobacterium tuberculosis | Catalyzes a trans-dehydration via an enolate intermediate. | 2 | Details |
| 3-dehydroquinate dehydratase | Salmonella typhi | Involved in the third step of the chorismate pathway, which leads to the biosynthesis of aromatic amino acids. Cataly... more | 1 | Details |
| 3-dehydroquinate synthase | Staphylococcus aureus (strain MRSA252) | Catalyzes the conversion of 3-deoxy-D-arabino-heptulosonate 7-phosphate (DAHP) to dehydroquinate (DHQ). | 1 | Details |
| 3-deoxy-D-manno-octulosonate 8-phosphate phosphatase KdsC | Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd) | Catalyzes the hydrolysis of 3-deoxy-D-manno-octulosonate 8-phosphate (KDO 8-P) to 3-deoxy-D-manno-octulosonate (KDO) ... more | 1 | Details |
| 3-deoxy-manno-octulosonate cytidylyltransferase | Escherichia coli | Activates KDO (a required 8-carbon sugar) for incorporation into bacterial lipopolysaccharide in Gram-negative bacteria. | 5 | Details |
| 3-deoxy-manno-octulosonate cytidylyltransferase | Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd) | Activates KDO (a required 8-carbon sugar) for incorporation into bacterial lipopolysaccharide in Gram-negative bacteria. | 1 | Details |
| 3-hydroxy-3-methylglutaryl-coenzyme A reductase | Pseudomonas mevalonii | P.mevalonii can use mevalonate as sole carbon source. With this enzyme mevalonate is deacetylated to HMG-CoA. | 4 | Details |
| 3-hydroxy-3-methylglutaryl-coenzyme A reductase | Humans | Catalyzes the conversion of (3S)-hydroxy-3-methylglutaryl-CoA (HMG-CoA) to mevalonic acid, the rate-limiting step in ... more | 33 | Details |
| 3-hydroxyacyl-[acyl-carrier-protein] dehydratase FabZ | Helicobacter pylori | Involved in unsaturated fatty acids biosynthesis. Catalyzes the dehydration of short chain beta-hydroxyacyl-ACPs and ... more | 10 | Details |
| 3-hydroxyacyl-[acyl-carrier-protein] dehydratase FabZ | Helicobacter pylori (strain ATCC 700392 / 26695) | Involved in unsaturated fatty acids biosynthesis. Catalyzes the dehydration of short chain beta-hydroxyacyl-ACPs and ... more | 1 | Details |
| 3-hydroxyacyl-CoA dehydrogenase type-2 | Humans | Mitochondrial dehydrogenase involved in pathways of fatty acid, branched-chain amino acid and steroid metabolism. Act... more | 5 | Details |
| 3-hydroxyanthranilate 3,4-dioxygenase | Ralstonia metallidurans (strain CH34 / ATCC 43123 / DSM 2839) | Catalyzes the oxidative ring opening of 3-hydroxyanthranilate to 2-amino-3-carboxymuconate semialdehyde, which sponta... more | 1 | Details |
| 3-hydroxydecanoyl-[acyl-carrier-protein] dehydratase | Shigella flexneri | Necessary for the introduction of cis unsaturation into fatty acids. Catalyzes the dehydration of (3R)-3-hydroxydecan... more | 1 | Details |
| 3-hydroxydecanoyl-[acyl-carrier-protein] dehydratase | Escherichia coli (strain K12) | Necessary for the introduction of cis unsaturation into fatty acids. Catalyzes the dehydration of (3R)-3-hydroxydecan... more | 1 | Details |
| 3-hydroxyisobutyrate dehydrogenase, mitochondrial | Humans | Not Available | 1 | Details |
| 3-hydroxyisobutyryl-CoA hydrolase, mitochondrial | Humans | Hydrolyzes 3-hydroxyisobutyryl-CoA (HIBYL-CoA), a saline catabolite. Has high activity toward isobutyryl-CoA. Could b... more | 1 | Details |
| 3-isopropylmalate dehydrogenase | Thiobacillus ferrooxidans | Catalyzes the oxidation of 3-carboxy-2-hydroxy-4-methylpentanoate (3-isopropylmalate) to 3-carboxy-4-methyl-2-oxopent... more | 1 | Details |
| 3-keto-L-gulonate-6-phosphate decarboxylase UlaD | Escherichia coli (strain K12) | Catalyzes the decarboxylation of 3-keto-L-gulonate-6-P into L-xylulose-5-P. Is involved in the anaerobic L-ascorbate ... more | 5 | Details |
| 3-keto-steroid reductase/17-beta-hydroxysteroid dehydrogenase 7 | Humans | Bifunctional enzyme involved in steroid-hormone metabolism and cholesterol biosynthesis. Catalyzes the NADP(H)-depend... more | 1 | Details |
| 3-ketoacyl-CoA thiolase | Pseudomonas fragi | Catalyzes the final step of fatty acid oxidation in which acetyl-CoA is released and the CoA ester of a fatty acid tw... more | 1 | Details |
| 3-ketoacyl-CoA thiolase, mitochondrial | Humans | In the production of energy from fats, this is one of the enzymes that catalyzes the last step of the mitochondrial b... more | 1 | Details |
| 3-mercaptopyruvate sulfurtransferase | Escherichia coli (strain K12) | Catalyzes the transfer of sulfur from 3-mercaptopyruvate to a thiol-containing acceptor to form an intramolecular dis... more | 1 | Details |
| 3-mercaptopyruvate sulfurtransferase | Humans | Transfer of a sulfur ion to cyanide or to other thiol compounds. Also has weak rhodanese activity. Detoxifies cyanide... more | 2 | Details |