Two cell adhesion molecules, nectin and cadherin, interact through their cytoplasmic domain-associated proteins.

Two cell adhesion molecules, nectin and cadherin, interact through their cytoplasmic domain-associated proteins.
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DOI:
10.1083/jcb.150.5.1161
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发表时间:
2000-09-04
期刊:
The Journal of cell biology
影响因子:
--
通讯作者:
Takai Y
Takai Y
中科院分区:
其他
文献类型:
--
作者:
Tachibana K;Nakanishi H;Mandai K;Ozaki K;Ikeda W;Yamamoto Y;Nagafuchi A;Tsukita S;Takai Y

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我们在基于钙粘蛋白的细胞-细胞粘附连接(AJ)上发现了一种新的细胞-细胞粘附系统,该系统至少由nectin和l-afadin组成。 Nectin 是一种不依赖 Ca2+ 的同种免疫球蛋白样粘附分子,l-afadin 是一种肌动蛋白丝结合蛋白,可将 Nectin 的细胞质区域与肌动蛋白细胞骨架连接起来。 nectin 的反式相互作用以及 nectin 与 l-afadin 的相互作用对于它们与 E-钙粘蛋白和连环蛋白在 AJ 上的共定位都是必要的。在这里,我们通过使用α-连环蛋白缺陷的 F9 细胞系和钙粘蛋白缺陷的 L 细胞系稳定表达其各种成分,研究了 AJ 上这两种细胞-细胞粘附系统之间的相互作用机制。我们在此表明​​,Nectin 和 E-cadherin 通过 L-afadin 和 AJ 处 α-catenin 的 COOH 末端部分共定位。 Nectin 独立于 E-cadherin 进行反式相互作用,E-cadherin 与 α- 和 β-catenin 的复合物通过 L-afadin 募集到基于 nectin 的细胞间粘附位点,而无需 E-cadherin 的反式相互作用。我们的结果表明,Nectin 和钙粘蛋白通过其细胞质结构域相关蛋白相互作用,并表明这两种细胞-细胞粘附系统协同组织细胞-细胞 AJ。
We have found a new cell–cell adhesion system at cadherin-based cell–cell adherens junctions (AJs) consisting of at least nectin and l-afadin. Nectin is a Ca2+-independent homophilic immunoglobulin-like adhesion molecule, and l-afadin is an actin filament-binding protein that connects the cytoplasmic region of nectin to the actin cytoskeleton. Both the trans-interaction of nectin and the interaction of nectin with l-afadin are necessary for their colocalization with E-cadherin and catenins at AJs. Here, we examined the mechanism of interaction between these two cell–cell adhesion systems at AJs by the use of α-catenin–deficient F9 cell lines and cadherin-deficient L cell lines stably expressing their various components. We showed here that nectin and E-cadherin were colocalized through l-afadin and the COOH-terminal half of α-catenin at AJs. Nectin trans-interacted independently of E-cadherin, and the complex of E-cadherin and α- and β-catenins was recruited to nectin-based cell–cell adhesion sites through l-afadin without the trans-interaction of E-cadherin. Our results indicate that nectin and cadherin interact through their cytoplasmic domain–associated proteins and suggest that these two cell–cell adhesion systems cooperatively organize cell–cell AJs.
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发表时间: 1999-01-25
影响因子: 7.8
作者:
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期刊: The Journal of cell biology
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DOI: 10.1083/jcb.146.5.1117
发表时间: 1999-09-06
期刊: The Journal of cell biology
影响因子: --
作者:
Ikeda W;Nakanishi H;Miyoshi J;Mandai K;Ishizaki H;Tanaka M;Togawa A;Takahashi K;Nishioka H;Yoshida H;Mizoguchi A;Nishikawa S;Takai Y
通讯作者: Takai Y
DOI: 10.1128/jvi.72.12.9992-10002.1998
发表时间: 1998-12-01
影响因子: 5.4
作者:
Cocchi, F;Menotti, L;Campadelli-Fiume, G
通讯作者: Campadelli-Fiume, G
DOI: 10.1038/373261a0
发表时间: 1995-01-19
期刊: NATURE
影响因子: 64.8
作者:
JOHNSON, RP;CRAIG, SW
通讯作者: CRAIG, SW