Noncovalent dimerization of ubiquitin.
Noncovalent dimerization of ubiquitin.
复制标题
DOI:
10.1002/anie.201106190
复制
发表时间:
2012-01-09
影响因子:
16.6
通讯作者:
Tang, Chun
中科院分区:
文献类型:
--
作者:
Liu, Zhu;Zhang, Wei-Ping;Xing, Qiong;Ren, Xuefeng;Liu, Maili;Tang, Chun
关键词:
Ubiquitin is a small signaling protein in cells and is highly conserved throughout the eukaryotes. Ubiquitin interacts with myriad partner proteins that contain one or more ubiquitin-binding domains (UBDs). To achieve multivalent binding with several UBDs, ubiquitins are often covalently linked by an isopeptide bond between the C-terminal carboxyl group of one ubiquitin and a primary amine in another;[1a, b] the two subunits in a di-ubiquitin are referred to as the proximal unit and the distal unit, respectively. All seven lysines and the N-terminus of ubiquitin can participate in the isopeptide bond.[2] In tandem, multiple ubiquitins can be linked up to form a poly (ubiquitin). Depending on the site of the linkage, di-and poly (ubiquitin) s can display distinct quaternary structures, which may account for their linkage-specific functions.[1a, b] Among the linkages, Lys11, Lys48, and Lys63-linked poly (ubiquitin) s are best characterized: Lys63-linked poly (ubiquitin) is involved in cellular events such as endocytosis and DNA repair, while both Lys11-and Lys48-linked poly (ubiquitin) s can signal for proteosomal degradation.[1a, b] In crystal, Lys48-linked diubiquitin mostly adopts a closed conformation, burying hydrophobic residues around Ile44 in both subunits;[3a, b, 4] Lys63-linked di-ubiquitin adopts an open extended structure;[5a, b, 6] while Lys11-linked di-ubiquitin displays intermediate subunit separation.[7, 8]
登录
查看更多内容
影响因子:
64.8
作者:
Lindorff-Larsen, K;Best, RB;Vendruscolo, M
通讯作者:
Vendruscolo, M
影响因子:
5.6
作者:
Datta, Ajit B.;Hura, Greg L.;Wolberger, Cynthia
通讯作者:
Wolberger, Cynthia
影响因子:
64.8
作者:
Tang, Chun;Louis, John M.;Aniana, Annie;Suh, Jeong-Yong;Clore, G. Marius
通讯作者:
Clore, G. Marius
影响因子:
5.6
作者:
Fushman D;Walker O
通讯作者:
Walker O
DOI:
10.1016/j.str.2006.06.012
发表时间:
2006-08
期刊:
Structure (London, England : 1993)
影响因子:
--
作者:
Renatus M;Parrado SG;D'Arcy A;Eidhoff U;Gerhartz B;Hassiepen U;Pierrat B;Riedl R;Vinzenz D;Worpenberg S;Kroemer M
通讯作者:
Kroemer M