单词 | photoreactivating enzyme |
释义 | > as lemmasphotoreactivating enzyme photoreactivating enzyme n. an enzyme which, under the influence of light, catalyses the repair of genetic material damaged by ultraviolet irradiation; spec. = photolyase n. ΚΠ 1960 Jrnl. Gen. Physiol. 43 592 This photoreactivating enzyme (PRE) is interesting for two reasons. First, it is a photoenzyme, and few enzymes involved in photochemical reactions are known at present. Second, it acts on DNA in vitro without depolymerizing it. 1975 Nature 11 Sept. 133/1 Photoreactivation is a DNA repair process in which the photoreactivating enzyme (PRE) monomerises pyrimidine dimers induced by ultraviolet light. 1999 Science (Nexis) 3 Dec. 1897 Direct reversal of UV damage by photoreactivating enzymes has not been detected in placental mammals. < as lemmas |
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