| butyrate-CoA ligase | Fatty acid thiokinase (medium chain), a ligase forming acyl-CoA's from medium-chain fatty acids and CoA with the conversion of ATP to AMP and PPi. A key step in activation of fatty acids. Synonym: acyl-activating enzyme, butyryl-CoA synthetase, octanoyl-CoA synthetase. (05 Mar 2000) |
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| carnitine coenzyme A ligase | <enzyme> Caic protein isolated from e. Coli Registry number: EC 6.2.1.- Synonym: carnitine CoA ligase, crotonobetaine CoA ligase, caic gene product (26 Jun 1999) |
| glutamate-ammonia ligase | <enzyme> An enzyme that catalyses the conversion of ATP, l-glutamate, and nh3 to ADP, orthophosphate, and l-glutamine. It also acts more slowly on 4-methylene-l-glutamate. Chemical name: L-Glutamate:ammonia ligase (ADP-forming) Registry number: EC 6.3.1.2 (12 Dec 1998) |
| glutamate-cysteine ligase | <enzyme> One of the enzymes active in the gamma-glutamyl cycle. It catalyses the synthesis of gamma-glutamylcysteine from glutamate and cysteine in the presence of ATP with the formation of ADP and orthophosphate. Chemical name: L-Glutamate:L-cysteine gamma-ligase (ADP-forming) Registry number: EC 6.3.2.2 (12 Dec 1998) |
| RNA ligase | <enzyme> An enzyme that catalyses the conversion of linear RNA to a circular form by the transfer of the 5'-phosphate to the 3'-hydroxyl terminus. It also catalyses the covalent joining of two polyribonucleotides in phosphodiester linkage. Chemical name: Poly(ribonucleotide):poly(ribonucleotide)ligase (AMP-forming) Registry number: EC 6.5.1.3 (12 Dec 1998) |
| phenylacetate - CoA ligase | <enzyme> Catalyses the synthesis of phenylacetyl-CoA and phenoxyacetyl-CoA Registry number: EC 6.2.1.30 Synonym: phenylacetyl-CoA ligase, phenylacetic acid activating enzyme, phenoxyacetic acid activating enzyme, phenacyl coenzyme a ligase, phenylacetate-CoA ligase (AMP-forming) (26 Jun 1999) |
| citrate (pro-3S)-lyase ligase | <enzyme> Deacetylcitrate lyase, acetate and ATP forms citrate lyase, AMP, pi Registry number: EC 6.2.1.22 Synonym: citc gene product, acetate-sh-citrate lyase ligase, citrate lyase ligase (26 Jun 1999) |
| phytanoyl-CoA ligase | <enzyme> An acyl-CoA ligase found in peroxisomes of fibroblasts; it is distinct from palmitoyl-CoA ligase and lignoceroyl-CoA ligase Registry number: EC 6.2.1.- Synonym: phytanoyl-coenzyme a ligase (26 Jun 1999) |
| coronafacate ligase | <enzyme> Required for coronatine biosynthesis by pseudomonas syringae; responsible for the amide linkage of coronafacic acid and coronamic acid; genbank u09027 Registry number: EC 6.3.1.- Synonym: cfl gene product (26 Jun 1999) |
| xenobiotic medium chain fatty acid - coenzyme A ligase | <enzyme> Partial amino acid sequence of enzyme from bovine liver mitochondria given I first source; has high sequence homology to human and rat sa protein Registry number: EC 6.2.1.- Synonym: xl-i ligase, xl-i carboxylic acid - CoA ligase (26 Jun 1999) |
| succinyl-CoA ligase | A ligase reversibly reacting succinate and CoA with ATP to produce ADP, inorganic phosphate, and succinyl-CoA, a similar synthetase, but one able to use itaconate as well as succinate and GTP (or ITP) in place of ATP; a part of the tricarboxylic acid cycle. Synonym: succinic thiokinase, succinyl-CoA ligase. (05 Mar 2000) |
| DNA ligase | <enzyme, molecular biology> Enzyme involved in DNA replication. The DNA ligase of E. Coli seals nicks in one strand of double stranded DNA, a reaction required for linking precursor fragments during discontinuous synthesis on the lagging strand. Nicks are breaks in the phosphodiester linkage that leave a free 3_ OH and 5_ phosphate. The ligase from phage T4 has the additional property of joining two DNA molecules having completely base paired ends. DNA ligases are crucial in joining DNA molecules and preparing radioactive probes (by nick translation) in recombinant DNA technology. (18 Nov 1997) |
| IMP-aspartate ligase | <enzyme> A carbon-nitrogen ligase. During purine ribonucleotide biosynthesis, this enzyme catalyses the synthesis of adenylosuccinate from GTP, imp, and aspartate with the formation of orthophosphate and GDP. Chemical name: IMP:L-aspartate ligase (GDP-forming) Registry number: EC 6.3.4.4 (12 Dec 1998) |
| tubulin-tyrosine ligase | <enzyme> An enzyme that covalently links a tyrosine to the C-terminal glutamyl residue of tubulin, coupled with the hydrolysis of ATP to ADP and Pi; this is a unique posttranslational modification that may have a significant role in cytoskeletal traffic and design. (05 Mar 2000) |
| tyrosyltubulin ligase | <enzyme> Catalyses reversible, post-translational addition of tyrosine, phenylalanine or dopa to carboxyl terminal of alpha-chain of tubulin Registry number: EC 6.3.2.- Synonym: tubulin-tyrosine ligase, tyrosyl tubulin ligase (26 Jun 1999) |