SNARE Proteins‐Why So Many, Why So Few?

SNARE Proteins‐Why So Many, Why So Few?
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SNARE 蛋白质——为什么这么多,为什么这么少?

DOI:
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发表时间:
1997
影响因子:
4.7
通讯作者:
M. Linial
M. Linial
中科院分区:
医学2区
文献类型:
--
作者:
M. Linial

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摘要:转运和分泌都依赖于准确和特异性的膜识别和融合。这些过程中的一个关键步骤是由少量蛋白质组成的复合物的组装,即胞外核心复合物。在神经末梢,这一组由VAMP和synaptotagmin组成,它们位于突触囊泡膜上,syntaxin和SNAP - 25位于质膜上。在这项调查中,不同的分泌系统依赖于胞外核心蛋白被考虑。讨论了胞外核心蛋白的多种变体在膜识别和融合中实现特异性的可能性。核心复合物蛋白的可变性是由基因家族的复杂性、异构体特异性定位和翻译后修饰决定的。基本的生化特性取决于特定的同种异构体,而可能的蛋白质-蛋白质相互作用则由不同同种异构体的相容性决定。特定的变异和不同的生化或细胞特性之间的相关性被显示出来。这项调查的结果是,分泌物的异质性可能是由少数蛋白质变体的大量可能组合决定的。
Abstract: Both trafficking and secretion critically depend on accurate and specific membrane recognition and fusion. A key step in these processes is the assembly of a complex consisting of a small number of proteins, i.e., the exocytic core complex. In nerve terminals, this set consists of VAMP and synaptotagmin, which reside at membranes of synaptic vesicles, and syntaxin and SNAP‐25 at the plasma membrane. In this survey, different secretory systems that depend on the exocytic core proteins are considered. The possibility that specificity in membrane recognition and fusion is achieved by the numerous variants of proteins of the exocytic core is discussed. Variability of the core complex proteins is determined by the complexity of gene families, isoform‐specific localization, and posttranslational modifications. Basic biochemical properties depend on specific isoforms, and the possible protein‐protein interactions are determined, in turn, by the compatibility of different isoforms. A correlation between specific variants and distinct biochemical or cellular properties is shown. The outcome of this survey is that heterogeneity in secretion may be dictated by the large number of possible combinations of variants of only a few proteins.
Syntaxin 5 调节内质网到高尔基体的运输。
DOI: --
发表时间: 1994
期刊: The Journal of biological chemistry
影响因子: --
作者:
Dascher,C;Matteson,J;Balch,WE
通讯作者: Balch,WE
DOI: 10.1210/endo.137.4.8625909
发表时间: 1996-04
期刊: Endocrinology
影响因子: 4.8
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M. Wheeler;L. Sheu;M. Ghai;A. Bouquillon;G. Grondin;U. Weller;A. Beaudoin;M. Bennett;W. Trimble;H. Gaisano
通讯作者: M. Wheeler;L. Sheu;M. Ghai;A. Bouquillon;G. Grondin;U. Weller;A. Beaudoin;M. Bennett;W. Trimble;H. Gaisano
DOI: 10.1016/s0021-9258(17)37233-2
发表时间: 1994-03
期刊: The Journal of biological chemistry
影响因子: --
作者:
M. Perin
通讯作者: M. Perin
DOI: 10.1073/pnas.91.26.12942
发表时间: 1994-12-20
影响因子: 11.1
作者:
GODA, Y;STEVENS, CF
通讯作者: STEVENS, CF
DOI: 10.1126/science.8430330
发表时间: 1993-02-05
期刊: SCIENCE
影响因子: 56.9
作者:
GREENGARD, P;VALTORTA, F;BENFENATI, F
通讯作者: BENFENATI, F