Structural basis of nucleotide sugar transport across the Golgi membrane.

Structural basis of nucleotide sugar transport across the Golgi membrane.
复制标题

DOI:
10.1038/nature24464
复制
发表时间:
2017-11-23
期刊:
影响因子:
64.8
通讯作者:
Newstead S
Newstead S
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Parker JL;Newstead S

文献摘要

参考文献

被引文献

相似文献

糖基化是一个基本的细胞过程,在真核生物中发生在高尔基体和内质网的腔内。核苷酸糖转运蛋白(NSTs)是糖基化途径的重要组成部分,提供糖基转移酶所需的各种底物。nst与人类的几种发育和免疫紊乱有关,并且在致病微生物中起着重要的毒力作用。然而,nst如何识别和运输活化的单糖目前尚不清楚。在这里,我们提出了NST的第一个晶体结构,gdp -甘露糖转运体Vrg4,在底物自由和束缚状态下。迄今为止未观察到的短链脂质在激活转运体中的要求支持了高尔基体高动态膜内调节的模型。我们的研究结果为理解核苷酸糖识别提供了结构基础,并为细胞内转运蛋白家族的运输和调控机制提供了见解。
Glycosylation is a fundamental cellular process that in eukaryotes occurs in the lumen of both the Golgi apparatus and endoplasmic reticulum. Nucleotide sugar transporters (NSTs) are an essential component of the glyscosylation pathway, providing the diverse range of substrates required for the glycosyltransferases. NSTs are linked to several developmental and immune disorders in humans and in pathogenic microbes play an important role in virulence. How NSTs recognise and transport activated monosaccharides however is currently unclear. Here we present the first crystal structure of an NST, the GDP-mannose transporter Vrg4, in both the substrate free and bound states. A hitherto unobserved requirement for short chain lipids in activating the transporter supports a model for regulation within the highly dynamic membranes of the Golgi apparatus. Our results provide a structural basis for understanding nucleotide sugar recognition and provide insights into the transport and regulatory mechanism for this family of intracellular transporters.
DOI: 10.1038/nprot.2008.44
发表时间: 2008-01-01
期刊: NATURE PROTOCOLS
影响因子: 14.8
作者:
Drew, David;Newstead, Simon;Iwata, So
通讯作者: Iwata, So
DOI: 10.1182/blood-2004-09-3509
发表时间: 2005-04-01
期刊: BLOOD
影响因子: 20.3
作者:
Martinez-Duncker, I;Dupré, T;Mollicone, R
通讯作者: Mollicone, R
DOI: 10.1107/s0907444904016427
发表时间: 2004-12-01
影响因子: 2.2
作者:
Blanc, E;Roversi, P;Bricogne, G
通讯作者: Bricogne, G
DOI: 10.1073/pnas.78.12.7453
发表时间: 1981-01-01
期刊: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子: --
作者:
DUNPHY, WG;FRIES, E;ROTHMAN, JE
通讯作者: ROTHMAN, JE
DOI: 10.1007/s00424-003-1093-0
发表时间: 2004-02-01
影响因子: 4.5
作者:
Ishida, N;Kawakita, M
通讯作者: Kawakita, M