| 4-halobenzoate-CoA ligase | <enzyme> Involved in conversion of 4-chlorobenzoate to 4-hydroxybenzoate by pseudomonas sp. Cbs3; 115 kD; acts on 4-chloro-, 4-bromo-, 4-iodobenzoate most effectively; 16 n-terminal amino acid sequence determined, with 3 questions, in first source Registry number: EC 6.2.1.- Synonym: 4-chlorobenzoate-CoA ligase, 4-cba-CoA ligase, 4-chlorobenzoate-coenzyme a ligase (26 Jun 1999) |
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| 4-hydroxybenzoate coenzyme A ligase | <enzyme> From rhodopseudomonas palustris; involved in anaerobic metabolism of 4-hydroxybenzoate Registry number: EC 6.2.1.- Synonym: 4-hydroxybenzoate-CoA ligase, 4-hb-CoA ligase (26 Jun 1999) |
| formate-tetrahydrofolate ligase | <enzyme> An enzyme that catalyses the formation of 10-formyltetrahydrofolate from formate and tetrahydrofolate in the presence of ATP. This enzyme has been found in pigeon liver, human erythrocytes and some microorganisms. Chemical name: Formate:tetrahydrofolate ligase (ADP-forming) Registry number: EC 6.3.4.3 (12 Dec 1998) |
| leucine-trna ligase | <enzyme> An enzyme that activates leucine with its specific transfer RNA. Chemical name: L-Leucine:tRNA(Leu) ligase (AMP-forming) Registry number: EC 6.1.1.4 (12 Dec 1998) |
| ligase | <enzyme, molecular biology> Major class of enzymes that catalyse the linking together of two molecules (category 6 in the I.U.B.C.E. Nomenclature) for example DNA ligases that link two fragments of DNA by forming a phosphodiester bond. (18 Nov 1997) |
| ligase amplification reaction | <molecular biology> Method for detecting small quantities of a target DNA, with utility similar to PCR. It relies on DNA ligase to join adjacent synthetic oligonucleotides after they have bound the target DNA. Their small size means that they are destabilised by single base mismatches and so form a sensitive test for the presence of mutations in the target sequence. (18 Nov 1997) |
| lignoceroyl-CoA ligase | <enzyme> Requires ATP and mg Registry number: EC 6.2.1.- Synonym: lignoceroyl-coenzyme a ligase (26 Jun 1999) |
| lipoate-protein ligase | <enzyme> Involved in post-translation modification by n6-lipoylation of lysine residues of the lipoate acyltransferase subunits of 2-oxoglutarate dehydrogenase and pyruvate dehydrogenase complexes Registry number: EC 6.3.2.- Synonym: lipoyl-protein ligase (26 Jun 1999) |
| long-chain-fatty-acid-(acyl-carrier-protein) ligase | <enzyme> Fatty acid, acyl-carrier-protein-sh and ATP gives acyl-(acyl-carrier-protein), AMP and ppi Registry number: EC 6.2.1.20 Synonym: fatty acid-acyl carrier protein ligase (AMP), acyl-(acyl-carrier-protein)synthetase, aacp synthetase, fatty acyl-acyl carrier protein synthase, vibrio harveyi, acyl-(acyl-carrier-protein) synthetase, acyl-acp synthetase (26 Jun 1999) |
| long-chain-fatty-acid-CoA ligase | <enzyme> Fatty acid thiokinase (long-chain), a ligase forming acyl-CoA, AMP, and pyrophosphate from long-chain fatty acids, ATP, and coenzyme A. Activity is independent of phosphatidylcholine Registry number: EC 6.2.1.3 Synonym: acyl-activating enzyme, dodecanoyl-CoA synthetase, fatty acid thiokinase (long chain), acid-coenzyme a ligase, fatty acid-CoA ligase, acyl-CoA synthetase, acyl-CoA ligase, coash ligase, ciprofibroyl-CoA synthetase, pristanoyl-CoA synthetase, palmityl CoA synthetase, palmitoyl CoA synthetase, palmitoyl CoA ligase, fatty acyl-CoA synthetase, very long chain fatty acid acyl-CoA synthetase, vlcfa acyl-CoA synthetase, nafenopin-CoA ligase, palmitoyl-CoA synthase, faa2 gene product, faa2p protein, vlacs enzyme (26 Jun 1999) |
| L-phenylglycine-AMP ligase | <enzyme> Catalyses l-phenylglycine-dependent ATP-pyrophosphate exchange; partial amino acid sequence given in first source Registry number: EC 6.3.2.- Synonym: pristinamycin I synthetase 4, pi synthetase 4, snbe protein (26 Jun 1999) |
| lysine-trna ligase | <enzyme> An enzyme that activates lysine with its specific transfer RNA. Chemical name: L-Lysine:tRNA(Lys) ligase (AMP-forming) Registry number: EC 6.1.1.6 (12 Dec 1998) |
| A-DNA | A form of DNA in which the helix is right-handed and the overall appearance is short and broad. (05 Mar 2000) |
| a-form DNA | <molecular biology> One of several forms that can be assumed by a double helix. A-DNA is stable in dehydrated conditions. This form is less common than the dominant form found under physiological conditions -- beta-DNA. This form is also assumed by DNA-RNA hybrid helices and by regions of double-stranded RNA. It is a right-handed helix and is a more compact form than beta-DNA. (09 Oct 1997) |
| antisense DNA | <molecular biology> A synthetic DNA strand that is complementary to a particular strand of target DNA with a complementary sequence of bases. This results in preventing expression of the gene encoded. These proteins can be used to selectively turn off production of certain proteins or block viral genetic instructions, by marking them for destruction by cellular enzymes, in order to prevent the building of new virus or the infection of new cells. (14 Nov 1997) |