E-cadherin dis-engagement activates the Rap1 GTPase.
E-cadherin dis-engagement activates the Rap1 GTPase.
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E-钙黏着蛋白的分离激活RAP1 GTPase。
DOI:
10.1002/jcb.21902
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发表时间:
2008-11-01
影响因子:
4
通讯作者:
Quilliam, Lawrence A.
中科院分区:
文献类型:
--
作者:
Asuri, Sirisha;Yan, Jingliang;Paranavitana, Nivanka C.;Quilliam, Lawrence A.
E-cadherin based adherens junctions are finely regulated by multiple cellular signaling events. Here we show that the Ras-related Rap1 GTPase is enriched in regions of nascent cell-cell contacts and strengthens E-cadherin junctions: constitutively active Rap1 expressing MDCK cells exhibit increased junctional contact and resisted calcium depletion-induced cell-cell junction disruption. E-cadherin disengagement activated Rap1 and this correlated with E-cadherin association with the Rap GEFs, C3G and PDZ-GEF I. PDZ-GEF I associated with E-cadherin and β-catenin whereas C3G interaction with E-cadherin did not involve β-catenin. Knockdown of PDZ-GEF I in MDCK cells decreased Rap1 activity following E-cadherin junction disruption. We hereby show that Rap1 plays a role in the maintenance and repair of E-cadherin junctions and is activated via an “outside-in” signaling pathway initiated by E-cadherin and mediated at least in part by PDZ-GEF I.
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DOI:
10.1083/jcb.200404068
发表时间:
2004-10-11
期刊:
The Journal of cell biology
影响因子:
--
作者:
Arthur WT;Quilliam LA;Cooper JA
通讯作者:
Cooper JA
DOI:
10.1006/bbrc.2000.2471
发表时间:
2000-04-21
影响因子:
3.1
作者:
Dobrosotskaya, IY;James, GL
通讯作者:
James, GL
影响因子:
3.5
作者:
Bos, JL;Franke, B;Zwartkruis, F
通讯作者:
Zwartkruis, F
DOI:
10.1083/jcb.107.4.1575
发表时间:
1988-10
期刊:
The Journal of cell biology
影响因子:
--
作者:
Gumbiner B;Stevenson B;Grimaldi A
通讯作者:
Grimaldi A
影响因子:
4.8
作者:
de Rooij, J;Boenink, NM;Bos, JL
通讯作者:
Bos, JL