Tropomyosin is an interaction partner of the Drosophila coiled coil protein yuri gagarin.

Tropomyosin is an interaction partner of the Drosophila coiled coil protein yuri gagarin.
复制标题

DOI:
10.1016/j.yexcr.2010.11.012
复制
发表时间:
2011-02-15
影响因子:
3.7
通讯作者:
Beckingham KM
Beckingham KM
中科院分区:
医学3区
文献类型:
--
作者:
Texada MJ;Simonette RA;Deery WJ;Beckingham KM

文献摘要

参考文献

被引文献

相似文献

果蝇基因 yuri Gagarin 是一个复杂的基因座,编码三种在生物体中普遍表达的蛋白质亚型。基因突变影响重力行为和精子发生等多种过程。较大的尤里亚型包含广泛的卷曲螺旋区域。我们之前的研究表明,在精子发生过程中形成专门的含 F-肌动蛋白的结构需要其中一种大同工型 (Yuri-65),包括介导精子细胞个体化的所谓肌动蛋白“锥体”。我们使用 Yuri-65 标记版本的串联亲和纯化(TAP 标记技术)来鉴定完整生物体中与 Yuri-65 相关的蛋白质。原肌球蛋白主要是源自普遍表达的原肌球蛋白 1 基因的 284 个残基亚型,因此被确定为主要的 Yuri 相互作用伴侣。免疫共沉淀实验证实了这种相互作用。我们已经确定,精子发生过程中稳定的 F-肌动蛋白锥体含有原肌球蛋白 1 (Tm1),并且在突变体 yuriF64 中,F-肌动蛋白锥体形成的失败与 Tm1 在锥体起始位点积累的失败相关。在研究 Tm1 和 Yuri 在其他组织中可能的相互作用时,我们发现 Tm1 和 Yuri 经常与内质网共定位。原肌球蛋白与其他系统中肌动蛋白介导的膜运输活动有关。我们的研究结果表明 Yuri-Tm1 复合物参与相关功能。
The Drosophila gene yuri gagarin is a complex locus encoding three protein isoform classes that are ubiquitously expressed in the organism. Mutations to the gene affect processes as diverse as gravitactic behavior and spermatogenesis. The larger Yuri isoforms contain extensive coiled-coil regions. Our previous studies indicate that one of the large isoform classes (Yuri-65) is required for formation of specialized F-actin-containing structures generated during spermatogenesis, including the so-called actin “cones” that mediate spermatid individualization. We used tandem affinity purification of a tagged version of Yuri-65 (the TAP-tagging technique) to identify proteins associated with Yuri-65 in the intact organism. Tropomyosin, primarily as the 284-residue isoform derived from the ubiquitously expressed Tropomyosin 1 gene was thus identified as a major Yuri interaction partner. Co-immunoprecipitation experiments confirmed this interaction. We have established that the stable F-actin cones of spermatogenesis contain Tropomyosin 1 (Tm1) and that in mutant yuriF64, failure of F-actin cone formation is associated with failure of Tm1 to accumulate at the cone initiation sites. In investigating possible interactions of Tm1 and Yuri in other tissues, we discovered that Tm1 and Yuri frequently colocalize with the endoplasmic reticulum. Tropomyosin has been implicated in actin-mediated membrane trafficking activity in other systems. Our findings suggest that Yuri-Tm1 complexes participate in related functions.
在果蝇卵子发生过程中,jagunal是重组内质网所必需的。
DOI: 10.1083/jcb.200701048
发表时间: 2007-03-26
影响因子: 7.8
作者:
Lee, Sangil;Cooley, Lynn
通讯作者: Cooley, Lynn
DOI: 10.1016/s0092-8674(02)01279-5
发表时间: 2003-02-07
期刊: CELL
影响因子: 64.5
作者:
Culi, J;Mann, RS
通讯作者: Mann, RS
DOI: 10.1073/pnas.102179999
发表时间: 2002-05-28
影响因子: 11.1
作者:
Li, Y;Mui, S;Cohen, C
通讯作者: Cohen, C
DOI: 10.1016/0022-2836(88)90360-9
发表时间: 1988-12-05
影响因子: 5.6
作者:
BULLARD, B;LEONARD, K;FYRBERG, E
通讯作者: FYRBERG, E
DOI: 10.1016/0092-8674(84)90377-5
发表时间: 1984-01-01
期刊: CELL
影响因子: 64.5
作者:
KARLIK, CC;MAHAFFEY, JW;FYRBERG, EA
通讯作者: FYRBERG, EA