Binding site for p120/delta-catenin is not required for Drosophila E-cadherin function in vivo.
Binding site for p120/delta-catenin is not required for Drosophila E-cadherin function in vivo.
复制标题
果蝇E-钙粘着蛋白在体内不需要P120/Delta-catenin的结合位点。
DOI:
10.1083/jcb.200207160
复制
发表时间:
2003-02-03
期刊:
影响因子:
--
通讯作者:
Rorth P
中科院分区:
文献类型:
--
作者:
Pacquelet A;Lin L;Rorth P
Homophilic cell adhesion mediated by classical cadherins is important for many developmental processes. Proteins that interact with the cytoplasmic domain of cadherin, in particular the catenins, are thought to regulate the strength and possibly the dynamics of adhesion. β-catenin links cadherin to the actin cytoskeleton via α-catenin. The role of p120/δ-catenin proteins in regulating cadherin function is less clear. Both β-catenin and p120/δ-catenin are conserved in Drosophila. Here, we address the importance of cadherin–catenin interactions in vivo, using mutant variants of Drosophila epithelial cadherin (DE-cadherin) that are selectively defective in p120ctn (DE-cadherin-AAA) or β-catenin–armadillo (DE-cadherin-Δβ) interactions. We have analyzed the ability of these proteins to substitute for endogenous DE-cadherin activity in multiple cadherin-dependent processes during Drosophila development and oogenesis; epithelial integrity, follicle cell sorting, oocyte positioning, as well as the dynamic adhesion required for border cell migration. As expected, DE-cadherin-Δβ did not substitute for DE-cadherin in these processes, although it retained some residual activity. Surprisingly, DE-cadherin-AAA was able to substitute for the wild-type protein in all contexts with no detectable perturbations. Thus, interaction with p120/δ-catenin does not appear to be required for DE-cadherin function in vivo.
登录
查看更多内容
影响因子:
10.5
作者:
Tepass, U;GruszynskiDeFeo, E;Hartenstein, V
通讯作者:
Hartenstein, V
DOI:
10.1083/jcb.148.1.189
发表时间:
2000-01-10
期刊:
The Journal of cell biology
影响因子:
--
作者:
Thoreson MA;Anastasiadis PZ;Daniel JM;Ireton RC;Wheelock MJ;Johnson KR;Hummingbird DK;Reynolds AB
通讯作者:
Reynolds AB
DOI:
10.1083/jcb.200108156
发表时间:
2001-12-24
期刊:
The Journal of cell biology
影响因子:
--
作者:
Horikawa K;Takeichi M
通讯作者:
Takeichi M
影响因子:
14.9
作者:
BUNCH, TA;GRINBLAT, Y;GOLDSTEIN, LSB
通讯作者:
GOLDSTEIN, LSB
影响因子:
11.4
作者:
Royet, J;Bouwmeester, T;Cohen, SM
通讯作者:
Cohen, SM