首页> 美国卫生研究院文献>Journal of Bacteriology >Structure of the gene complementing uvr-402 in Streptococcus pneumoniae: homology with Escherichia coli uvrB and the homologous gene in Micrococcus luteus.
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Structure of the gene complementing uvr-402 in Streptococcus pneumoniae: homology with Escherichia coli uvrB and the homologous gene in Micrococcus luteus.

机译:肺炎链球菌中补充uvr-402的基因的结构:与大肠杆菌uvrB的同源性和黄Micro微球菌的同源基因。

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摘要

The repair ability for UV-induced damage observed for Streptococcus pneumoniae proceeds through a system similar to the Uvr-dependent system in Escherichia coli. The DNA sequence of a gene complementing uvr-402, a mutation conferring UV sensitivity, was determined. Alignments of the deduced amino acid sequence revealed an extensive sequence homology of 55% with the UvrB protein of E. coli and 59% with the UvrB-homologous protein of Micrococcus luteus. Nucleotide-binding site consensus was observed. The high conservation of the uvrB-like gene among these three species suggests that the role of the UvrB protein and excision repair in general might be very important for cell survival.
机译:对肺炎链球菌观察到的紫外线诱导的损伤的修复能力是通过类似于大肠杆菌中依赖Uvr的系统进行的。确定了补充uvr-402的基因的DNA序列,该基因赋予UV敏感性。推导的氨基酸序列的比对揭示了与大肠杆菌的UvrB蛋白的55%的广泛序列同源性和与黄曲霉的UvrB同源的蛋白的59%的广泛序列同源性。观察到核苷酸结合位点共有。这三个物种中的uvrB样基因的高度保守性表明,UvrB蛋白的作用和切除修复通常可能对细胞存活非常重要。

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