Ubiquitin-binding domains - from structures to functions.
Ubiquitin-binding domains - from structures to functions.
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DOI:
10.1038/nrm2767
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发表时间:
2009-10
期刊:
影响因子:
--
通讯作者:
Walters KJ
中科院分区:
文献类型:
--
作者:
Dikic I;Wakatsuki S;Walters KJ
Ubiquitin-binding domains (UBDs) are modular elements that bind non-covalently to the protein modifier ubiquitin. Recent atomic-level resolution structures of ubiquitin–UBD complexes have revealed some of the mechanisms that underlie the versatile functions of ubiquitin in vivo. The preferences of UBDs for ubiquitin chains of specific length and linkage are central contributors to these functions. These preferences originate from multimeric interactions, whereby UBDs synergistically bind multiple ubiquitin subunits, and from contacts with regions that link ubiquitin molecules into a polymer. The sequence context of UBDs and the conformational changes that follow their binding to ubiquitin also contribute to ubiquitin signalling. The new structure-based insights provide strategies for controlling cellular processes by targeting ubiquitin–UBD interfaces.
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