Analysis of Sequence Divergence in Mammalian ABCGs Predicts a Structural Network of Residues That Underlies Functional Divergence.

Analysis of Sequence Divergence in Mammalian ABCGs Predicts a Structural Network of Residues That Underlies Functional Divergence.
复制标题

DOI:
10.3390/ijms22063012
复制
发表时间:
2021-03-16
影响因子:
5.6
通讯作者:
Kerr ID
Kerr ID
中科院分区:
生物学2区
文献类型:
--
作者:
Mitchell-White JI;Stockner T;Holliday N;Briddon SJ;Kerr ID

文献摘要

参考文献

被引文献

相似文献

哺乳动物G亚家族的ATP结合盒转运蛋白的五个成员在其底物特异性方面有很大差异。该亚家族的四个成员在脂质转运中很重要,其中一个成员ABCG 2的广泛底物特异性由于其在多药耐药性中的作用而具有重要意义。为了探索底物选择性的起源在成员1,2,4,5和8这个亚家族,我们分析了成员之间的保守性的差异,在多序列比对的ABCG序列从哺乳动物。将具有相似保守模式的残基组映射到ABCG 2的解析3D结构上,通过从细胞质到跨膜结构域的残基连接网络揭示了功能差异的可能解释。在ABCG 2中,这种残基网络可能赋予额外的构象灵活性,使其能够运输更广泛的底物。
The five members of the mammalian G subfamily of ATP-binding cassette transporters differ greatly in their substrate specificity. Four members of the subfamily are important in lipid transport and the wide substrate specificity of one of the members, ABCG2, is of significance due to its role in multidrug resistance. To explore the origin of substrate selectivity in members 1, 2, 4, 5 and 8 of this subfamily, we have analysed the differences in conservation between members in a multiple sequence alignment of ABCG sequences from mammals. Mapping sets of residues with similar patterns of conservation onto the resolved 3D structure of ABCG2 reveals possible explanations for differences in function, via a connected network of residues from the cytoplasmic to transmembrane domains. In ABCG2, this network of residues may confer extra conformational flexibility, enabling it to transport a wider array of substrates.
DOI: 10.1021/bi200573t
发表时间: 2011-09-20
期刊: BIOCHEMISTRY
影响因子: 2.9
作者:
Ni, Zhanglin;Bikadi, Zsolt;Shuster, Diana L.;Zhao, Chunsheng;Rosenberg, Mark F.;Mao, Qingcheng
通讯作者: Mao, Qingcheng
DOI: 10.1002/1873-3468.13938
发表时间: 2020-12
期刊: FEBS letters
影响因子: 3.5
作者:
Khunweeraphong N;Mitchell-White J;Szöllősi D;Hussein T;Kuchler K;Kerr ID;Stockner T;Lee JY
通讯作者: Lee JY
DOI: 10.1093/bioinformatics/btn214
发表时间: 2008-07-01
期刊: Bioinformatics (Oxford, England)
影响因子: --
作者:
Capra JA;Singh M
通讯作者: Singh M
DOI: 10.1038/s41594-018-0049-1
发表时间: 2018-04-01
影响因子: 16.8
作者:
Jackson, Scott M.;Manolaridis, Ioannis;Locher, Kaspar P.
通讯作者: Locher, Kaspar P.
DOI: 10.1038/ng2101
发表时间: 2007-08-01
期刊: NATURE GENETICS
影响因子: 30.8
作者:
Buch, Stephan;Schafmayer, Clemens;Hampe, Jochen
通讯作者: Hampe, Jochen