Single-stranded DNA-binding proteins: multiple domains for multiple functions.
Single-stranded DNA-binding proteins: multiple domains for multiple functions.
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DOI:
10.1016/j.str.2013.05.013
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发表时间:
2013-07-02
期刊:
影响因子:
5.7
通讯作者:
Wuttke, Deborah S.
中科院分区:
文献类型:
--
作者:
Dickey, Thayne H.;Altschuler, Sarah E.;Wuttke, Deborah S.
The recognition of single-stranded DNA (ssDNA) is integral to myriad cellular functions. In eukaryotes, ssDNA is present stably at the ends of chromosomes and at some promoter elements. Furthermore, it is formed transiently by several cellular processes including telomere synthesis, transcription, and DNA replication, recombination, and repair. To coordinate these diverse activities, a variety of proteins have evolved to bind ssDNA in a manner specific to their function. Here, we review the recognition of ssDNA through the analysis of high-resolution structures of proteins in complex with ssDNA. This functionally diverse set of proteins arises from a limited set of structural motifs that can be modified and arranged to achieve distinct activities, including a range of ligand specificities. We also investigate the ways in which these domains interact in the context of large multidomain proteins/complexes. These comparisons reveal the structural features that define the range of functions exhibited by these proteins.
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