Balancing different types of actin polymerization at distinct sites
Balancing different types of actin polymerization at distinct sites
复制标题
在不同位点平衡不同类型的肌动蛋白聚合
作者:
E. Grevengoed;Donald T. Fox;J. Gates;M. Peifer
The proto-oncogenic kinase Abelson (Abl) regulates actin in response to cell signaling. Drosophila Abl is required in the nervous system, and also in epithelial cells, where it regulates adherens junction stability and actin organization. Abl acts at least in part via the actin regulator Enabled (Ena), but the mechanism by which Abl regulates Ena is unknown. We describe a novel role for Abl in early Drosophila development, where it regulates the site and type of actin structures produced. In Abl's absence, excess actin is polymerized in apical microvilli, whereas too little actin is assembled into pseudocleavage and cellularization furrows. These effects involve Ena misregulation. In abl mutants, Ena accumulates ectopically at the apical cortex where excess actin is observed, suggesting that Abl regulates Ena's subcellular localization. We also examined other actin regulators. Loss of Abl leads to changes in the localization of the Arp2/3 complex and the formin Diaphanous, and mutations in diaphanous or capping protein β enhance abl phenotypes.
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影响因子:
4
作者:
Thomas,CM;Williams,JA
通讯作者:
Williams,JA
DOI:
10.1242/dev.116.4.953
发表时间:
1992
期刊:
Development (Cambridge, England)
影响因子:
--
作者:
Bennett,RL;Hoffmann,FM
通讯作者:
Hoffmann,FM
影响因子:
10.5
作者:
Plattner, R;Kadlec, L;Pendergast, AM
通讯作者:
Pendergast, AM
DOI:
--
发表时间:
2000
期刊:
Journal of neurobiology.
影响因子:
--
作者:
Korey,CA;VanVactor,D
通讯作者:
VanVactor,D