A region of the myosin rod important for interaction with paramyosin in Caenorhabditis elegans striated muscle.

A region of the myosin rod important for interaction with paramyosin in Caenorhabditis elegans striated muscle.
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肌球蛋白杆的一个区域,对于与秀丽隐杆线虫横纹肌中的副肌球蛋白相互作用非常重要。

DOI:
10.1093/genetics/156.2.631
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发表时间:
2000
期刊:
影响因子:
3.3
通讯作者:
Waterston,RH
Waterston,RH
中科院分区:
生物学2区
文献类型:
--
作者:
Hoppe,PE;Waterston,RH

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分子在粗丝中的精确排列,以及这种排列的机制仍然不清楚。本文利用线虫肌球蛋白重链(MHC)的一种亚型与副肌球蛋白(paramyosin)之间的独特遗传相互作用,探讨了MHC与副肌球蛋白在体内的分子相互作用,并利用嵌合肌球蛋白构建体,确定了MHC A杆的一个322残基区域,该区域对于抑制与unc-15(e73)等位基因相关的结构和运动缺陷至关重要。嵌合结构缺乏这一区域的MHC A要么不能抑制,或作为显性增强,e73表型。虽然322个残基的区域是抑制活性所必需的,我们的数据表明,序列沿着杆的长度也发挥了作用,在MHC A和副肌球蛋白之间的亚型特异性相互作用。我们对构建体行为的遗传学和细胞生物学分析表明,MHC A的322个残基区域对粗丝稳定性很重要。我们提出了一个模型,在该区域介导的MHC A和副肌球蛋白之间的相互作用,在平行排列的细丝臂的形成。
The precise arrangement of molecules within the thick filament, as well as the mechanisms by which this arrangement is specified, remains unclear. In this article, we have exploited a unique genetic interaction between one isoform of myosin heavy chain (MHC) and paramyosin inCaenorhabditis elegansto probe the molecular interaction between MHC and paramyosinin vivo.Using chimeric myosin constructs, we have defined a 322-residue region of the MHC A rod critical for suppression of the structural and motility defects associated with theunc-15(e73)allele. Chimeric constructs lacking this region of MHC A either fail to suppress, or act as dominant enhancers of, thee73phenotype. Although the 322-residue region is required for suppression activity, our data suggest that sequences along the length of the rod also play a role in the isoform-specific interaction between MHC A and paramyosin. Our genetic and cell biological analyses of construct behavior suggest that the 322-residue region of MHC A is important for thick filament stability. We present a model in which this region mediates an avid interaction between MHC A and paramyosin in parallel arrangement in formation of the filament arms.
影响秀丽隐杆线虫肌球蛋白重链的突变体。
DOI: --
发表时间: 1974
影响因子: 5.6
作者:
H. F. Epstein;H. F. Epstein;Robert H. Waterston;Sydney Brenner
通讯作者: Sydney Brenner
DOI: --
发表时间: 1981
影响因子: 5.6
作者:
D. A. Parry
通讯作者: D. A. Parry
秀丽隐杆线虫的 unc-45 基因编码肌肉特异性四肽重复的蛋白质。
DOI: --
发表时间: 1999
影响因子: --
作者:
L. Venolia;W. Ao;Stuart K. Kim;C. Kim;D. Pilgrim
通讯作者: D. Pilgrim
秀丽隐杆线虫副肌球蛋白 N 末端区域的磷酸化。
DOI: 10.1016/0022-2836(89)90267-2
发表时间: 1989
影响因子: 5.6
作者:
Schriefer,LA;Waterson,RH
通讯作者: Waterson,RH
DOI: 10.1002/j.1460-2075.1989.tb08507.x
发表时间: 1989-11-01
期刊: EMBO JOURNAL
影响因子: 11.4
作者:
WATERSTON, RH
通讯作者: WATERSTON, RH