| methyl coenzyme M methylreductase | <enzyme> Crude extracts of methanospirillum hungatii Registry number: EC 1.- Synonym: methylreductase, methyl com methylreductase (26 Jun 1999) |
|---|---|
| methyl coenzyme M reductase | <enzyme> Proposed EC 1.12.99.2 Registry number: EC 1.12.- Synonym: methyl com reductase, mcri gene product (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) |
| coenzyme | <biochemistry> An organic nonprotein molecule, frequently a phosphorylated derivative of a water soluble vitamin, that binds with the protein molecule (apoenzyme) to form the active enzyme (holoenzyme). (18 Nov 1997) |
| coenzyme A | <biochemistry> A derivative of adenosine triphosphate and pantothenic acid that can carry acyl groups (usually acetyl) as thioesters. Involved in many metabolic pathways, for example citric acid cycle and in fatty acid oxidation. (18 Nov 1997) |
| coenzyme a ligases | <enzyme> Enzymes that catalyze the formation of acyl-CoA derivatives. Registry number: EC 6.2.1. (12 Dec 1998) |
| coenzyme a-transferases | <enzyme> Enzymes which transfer coenzyme a moieties from acyl- or acetyl-CoA to various carboxylic acceptors forming a thiol ester. Enzymes in this group are instrumental in ketone body metabolism and utilization of acetoacetate in mitochondria. Registry number: EC 2.8.3 (12 Dec 1998) |
| coenzyme B12 | <biochemistry> A coenzyme derived from cobalamine which is involved in carbon skeletal rearrangements. It is the only biomolecule known that has a carbon-metal bond. (09 Oct 1997) |
| coenzyme I | An obsolete name for nicotinamide adenine dinucleotide. (05 Mar 2000) |
| coenzyme II | An obsolete for nicotinamide adenine dinucleotide phosphate. (05 Mar 2000) |
| coenzyme M | <biochemistry> 2 mercaptoethane sulphonic acid. This substance is involved in the formation of methane from carbon dioxide by methanogenic bacteria. (18 Nov 1997) |
| coenzyme M-7-merceptoheptanoylthreonine-phosphate-heterodisulfide hydrogenase | <enzyme> From methanobacterium thermoautotrophicum; reduces coenzyme m heterodisulfide of heptanoyl-l-threonine phosphate to yield coenzyme m and 7-mercaptoheptanoyl-l-threonine phosphate; may be a system of 2 enzymes, a hydrogenase and a disulfide reductase Registry number: EC 1.12.99.2 Synonym: heterodisulfide reductase, coenzyme m, coenzyme m heterodisulfide reductase, h2-heterodisulfide oxidoreductase complex, disulfide reductase (com-ss-htp), heterodisulfide reductase (com-ss-htp) (26 Jun 1999) |
| coenzyme Q | Quinones with isoprenoid side chains (specifically, ubiquinones) that mediate electron transfer between cytochrome b and cytochrome c; chemically similar to vitamins E and K, and to other tocopherols, quinones, and tocols. (05 Mar 2000) |
| coenzyme q10 | <biochemistry> A substance that assists in the oxidation of nutrients within cells to create energy. It is also highly efficient at protecting internal and external cell membranes against oxidation and is sometimes proposed as a complementary therapy to combat AIDS-related conditions. (09 Oct 1997) |
| coenzyme R | <biochemistry> A prosthetic group for carboxylase enzymes. Important in fatty acid biosynthesis and catabolism and has found widespread use as a covalent label for macromolecules which may then be detected by high affinity binding of labelled avidin or streptavidin. Essential growth factor for many cells. (18 Nov 1997) |