| prenylcysteine lyase | <enzyme> A specific enzyme involved in prenylcysteine metabolism in mammalian cells; mw 63 kD Registry number: EC 4.4.1.- Synonym: pclase (26 Jun 1999) |
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| cytochrome C1 haem lyase | <enzyme> A mitochondrial haem lyase from saccharomyces cerevisiae; mw about 31 kD; facilitates covalent attachment of haem to the apoforms of c-type cytochromes Registry number: EC 4.99.- Synonym: yeast cc1hl (26 Jun 1999) |
| S-alkylcysteine lyase | <enzyme> Produces pyruvic acid, ammonia and a thiol; consider also glutamine transaminase k, which has cysteine conjugate beta-lyase activity Registry number: EC 4.4.1.6 Synonym: cysteine conjugate beta-lyase (26 Jun 1999) |
| protein A24 lyase | <enzyme> Releases histone 2a and ubiquitin from chromosomal protein a24 Registry number: EC 4.- (26 Jun 1999) |
| histidine ammonia-lyase | <enzyme> An enzyme of the lyase class that catalyses the reaction of l-histidine to form urocanate and ammonia. The reaction is the initial step of histidine catabolism. Genetic deficiency of the enzyme, transmitted as an autosomal recessive trait, causes histidinaemia. Chemical name: L-Histidine ammonia-lyase Registry number: EC 4.3.1.3 (12 Dec 1998) |
| selenocysteine lyase | <enzyme> Decomposes l-selenocysteine into l-alanine and h2se Registry number: EC 4.99.- Synonym: selenocysteine beta-lyase (26 Jun 1999) |
| hyaluronate lyase | <enzyme> Also acts on chondroitin; formerly EC 4.2.99.1 Registry number: EC 4.2.2.1 Synonym: mucinase, spreading factor (26 Jun 1999) |
| hyaluronic lyase | <enzyme> Also acts on chondroitin; formerly EC 4.2.99.1 Registry number: EC 4.2.2.1 Synonym: mucinase, spreading factor (26 Jun 1999) |
| pyruvate-formate-lyase-deactivase | <chemical> Encoded by adhe gene product from E coli; pfla (radical form) yields pfl (non-radical form) in presence of fe++, nad and CoA and the multienzyme complex consisting of alcohol plus acetaldehyde-CoA dehydrogenase activities Synonym: pfl-deactivase, adhe multienzyme, adhe gene product (26 Jun 1999) |
| hydroperoxide lyase | <enzyme> Rabbit leukocyte enzyme; converts 15-hpete to 15-ketopentadeca-5,8,11,13-tetraenoic acid plus pentanol Registry number: EC 4.1.2.- Synonym: fatty acid hydroperoxide lyase, hpo lyase (26 Jun 1999) |
| hydroxymandelonitrile lyase | <enzyme> Catalyses the reversible condensation of cyanide with 4-hydroxybenzaldehyde to yield 4-hydroxymandelonitrile; can be obtained from plant extracts by immobilised metal ion affinity chromatography Registry number: EC 4.1.2.11 Synonym: hmn lyase, 4-hydroxymandelonitrile hydroxybenzaldehyde-lyase, hydroxynitrile lyase (26 Jun 1999) |
| spore photoproduct lyase | <enzyme> A 40-kD polypeptide that shows regional amino acid sequence homology to DNA photolyases; involved in repair of uv radiation-induced DNA damage during spore germination Registry number: EC 4.1.99.- Synonym: sp lyase, spl protein, spl gene product (26 Jun 1999) |
| streptogramin B lyase | <enzyme> An intramolecular lyase similar to EC 5.5.1.1; involved in resistance to etamycin and vernamycin b(alpha) in streptomyces lividans; reaction given in first source Registry number: EC 5.5.1.- (26 Jun 1999) |
| deoxyribodipyrimidine photo-lyase | <enzyme> An enzyme in yeast that is activated by light, whereupon it can reverse a previous photochemical reaction by cleaving the cyclobutane ring of the thymine dimer. It catalyses the reactivation by light of UV-irradiated DNA and cleaves two carbon-carbon bonds in pyrimidine dimers in DNA. Synonym: dipyrimidine photolyase, photoreactivating enzyme. Chemical name: Deoxyribocyclobutadipyrimidine pyrimidine-lyase Registry number: EC 4.1.99.3 (21 Jun 2000) |
| diaminopropionate ammonia-lyase | <enzyme> Used for the determination of diaminopropionic acid Registry number: EC 4.3.1.- (26 Jun 1999) |