The human otubain2-ubiquitin structure provides insights into the cleavage specificity of poly-ubiquitin-linkages.

The human otubain2-ubiquitin structure provides insights into the cleavage specificity of poly-ubiquitin-linkages.
复制标题

DOI:
10.1371/journal.pone.0115344
复制
发表时间:
2015
期刊:
影响因子:
3.7
通讯作者:
Kessler BM
Kessler BM
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Altun M;Walter TS;Kramer HB;Herr P;Iphöfer A;Boström J;David Y;Komsany A;Ternette N;Navon A;Stuart DI;Ren J;Kessler BM

文献摘要

参考文献

被引文献

相似文献

含有卵巢肿瘤结构域的蛋白酶可从蛋白质中切割泛素(Ub)和泛素样多肽。在这里,我们报道了人类OTUB2 (OTUB2)与泛素共价抑制剂Ub-Br2复合物的晶体结构。泛素结合模式与病毒otuus (viral otuus)结合泛素/ISG15的方式不同,而与酵母和哺乳动物otuus更相似。与OTUB1对Lys48多泛素链具有特异性不同,OTUB2可切割不同的多聚ub链。OTUB1和OTUB2之间的n端尾部交换实验揭示了OTUB1的n端结构基序如何调节酶活性和ub链选择性,这一特性在OTUB2中没有观察到,支持了OTUB2可能影响ub依赖途径中不同谱底物的观点。
Ovarian tumor domain containing proteases cleave ubiquitin (Ub) and ubiquitin-like polypeptides from proteins. Here we report the crystal structure of human otubain 2 (OTUB2) in complex with a ubiquitin-based covalent inhibitor, Ub-Br2. The ubiquitin binding mode is oriented differently to how viral otubains (vOTUs) bind ubiquitin/ISG15, and more similar to yeast and mammalian OTUs. In contrast to OTUB1 which has exclusive specificity towards Lys48 poly-ubiquitin chains, OTUB2 cleaves different poly-Ub linked chains. N-terminal tail swapping experiments between OTUB1 and OTUB2 revealed how the N-terminal structural motifs in OTUB1 contribute to modulating enzyme activity and Ub-chain selectivity, a trait not observed in OTUB2, supporting the notion that OTUB2 may affect a different spectrum of substrates in Ub-dependent pathways.
DOI: 10.1073/pnas.1013388108
发表时间: 2011-02-08
影响因子: 11.1
作者:
James, Terrence W.;Frias-Staheli, Natalia;Mark, Brian L.
通讯作者: Mark, Brian L.
DOI: 10.1038/sj.embor.embor824
发表时间: 2003-05-01
期刊: EMBO REPORTS
影响因子: 7.7
作者:
Balakirev, MY;Tcherniuk, SO;Chroboczek, J
通讯作者: Chroboczek, J
DOI: 10.1107/s0907444909052925
发表时间: 2010-02
期刊: Acta crystallographica. Section D, Biological crystallography
影响因子: --
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者: Zwart PH
DOI: 10.1042/bj20081318
发表时间: 2009-03-01
影响因子: 4.1
作者:
Edelmann, Mariola J.;Iphofer, Alexander;Kessler, Benedikt M.
通讯作者: Kessler, Benedikt M.
DOI: 10.1126/science.1145918
发表时间: 2007-12-07
期刊: SCIENCE
影响因子: 56.9
作者:
Kayagaki, Nobuhiko;Phung, Qui;Dixit, Vishva M.
通讯作者: Dixit, Vishva M.