22. 在大腸桿菌中,通過核苷酸切除修復(nucleotide excision..-阿摩線上測驗
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2F 羽徽侯 小二上 (2020/07/22)
In prokaryotes: Uvr proteins The process of nucleotide excision repair is controlled in Escherichia coli by the UvrABC endonuclease enzyme complex, which consists of four Uvr proteins: UvrA, UvrB, UvrC, and DNA helicase II (sometimes also known as UvrD in this complex). (複合體由皆內核酸酶組成) 辨識階段: First, a UvrA-UvrB complex scans the DNA, with the UvrA subunit recognizing distortions in the helix, caused for example by pyrimidine dimers. When the complex recognizes such a distortion, the UvrA subunit leaves and an UvrC protein comes in and binds to the UvrB monomer and, hence, forms a new...查看完整內容 |