Functional 3D architecture in an intrinsically disordered E3 ligase domain facilitates ubiquitin transfer
Functional 3D architecture in an intrinsically disordered E3 ligase domain facilitates ubiquitin transfer
复制标题
本质上无序的 E3 连接酶结构域中的功能性 3D 结构促进泛素转移
DOI:
10.1101/831362
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Murphy P
中科院分区:
文献类型:
--
作者:
Murphy P
The human genome contains an estimated 600 ubiquitin E3 ligases, many of which are single-subunit E3s (ssE3s) that can bind to both substrate and ubiquitin-loaded E2 (E2~Ub). Within ssE3s structural disorder tends to be located in substrate binding and domain linking regions. RNF4 is a ssE3 ligase with a C-terminal RING domain and disordered N-terminal region containing SUMO Interactions Motifs (SIMs) required to bind SUMO modified substrates. Here we show that, although the N-terminal region of RNF4 bears no secondary structure, it maintains a compact global architecture primed for SUMO interaction. Segregated charged regions within the RNF4 N-terminus promote compaction, juxtaposing RING domain and SIMs to facilitate substrate ubiquitination. Mutations that induce a more extended shape reduce ubiquitination activity. Our result offer insight into a key step in substrate ubiquitination by a member of the largest ubiquitin ligase subtype and reveal how a defined architecture within a disordered region contributes to E3 ligase function.
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影响因子:
112.7
作者:
Huaiyu Sun;J. Leverson;T. Hunter
通讯作者:
Huaiyu Sun;J. Leverson;T. Hunter
影响因子:
2.9
作者:
Humphrey, W;Dalke, A;Schulten, K
通讯作者:
Schulten, K
影响因子:
48
作者:
Kalinin, Stanislav;Peulen, Thomas;Seidel, Claus A. M.
通讯作者:
Seidel, Claus A. M.
影响因子:
2.9
作者:
Battiste, JL;Wagner, G
通讯作者:
Wagner, G
DOI:
10.1042/bj20130753
发表时间:
2014-01-01
期刊:
The Biochemical journal
影响因子:
--
作者:
Keusekotten K;Bade VN;Meyer-Teschendorf K;Sriramachandran AM;Fischer-Schrader K;Krause A;Horst C;Schwarz G;Hofmann K;Dohmen RJ;Praefcke GJ
通讯作者:
Praefcke GJ