| 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) |
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| photolyase | See: deoxyribodipyrimidine photolyase. Origin: photo-+ G. Lyo, to loosen, + -ase (05 Mar 2000) |
| pyrimidine(6-4)pyrimidone photolyase | <enzyme> Catalyses the light-dependent repair of pyrimidine(6-4)pyrimidone photoproducts; shows 20-22% sequence identity with class I cpd photolyase; genbank d83701 (drosophila), d83702 (human) Registry number: EC 4.1.99.- Synonym: (6-4)photolyase (26 Jun 1999) |
| dipyrimidine photolyase | deoxyribodipyrimidine photolyase |
| DNA photolyase | <enzyme, molecular biology> A DNA repair enzyme which recognises and removes dimers that have formed between pyrimidine nitrogenous bases on the same strand as each other, as a result of too much ultraviolet radiation. The enzyme can only do this if visible light is present. (09 Oct 1997) |
| 8-hydroxy-5-deazaflavin-dependent DNA photolyase | <enzyme> From anacystis nidulans; purified in streptomyces coelicolor; distinguish from folate-dependent DNA photolyase Registry number: EC 4.1.99.- Synonym: 8-hdfd-DNA photolyase (26 Jun 1999) |