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| Content Provider | PubMed Central |
|---|---|
| Author | Yokoyama, Shigekazu Tachibana, Kouichi Nakanishi, Hiroyuki Yamamoto, Yasunori Irie, Kenji Mandai, Kenji Akira, Nagafuchi Monden, Morito Takai, Yoshimi |
| Editor | Hynes, Richard |
| Copyright Year | 2001 |
| Abstract | ZO-1 is an actin filament (F-actin)–binding protein that localizes to tight junctions and connects claudin to the actin cytoskeleton in epithelial cells. In nonepithelial cells that have no tight junctions, ZO-1 localizes to adherens junctions (AJs) and may connect cadherin to the actin cytoskeleton indirectly through β- and α-catenins as one of many F-actin–binding proteins. Nectin is an immunoglobulin-like adhesion molecule that localizes to AJs and is associated with the actin cytoskeleton through afadin, an F-actin–binding protein. Ponsin is an afadin- and vinculin-binding protein that also localizes to AJs. The nectin-afadin complex has a potency to recruit the E-cadherin–β-catenin complex through α-catenin in a manner independent of ponsin. By the use of cadherin-deficient L cell lines stably expressing various components of the cadherin-catenin and nectin-afadin systems, and α-catenin–deficient F9 cell lines, we examined here whether nectin recruits ZO-1 to nectin-based cell-cell adhesion sites. Nectin showed a potency to recruit not only α-catenin but also ZO-1 to nectin-based cell-cell adhesion sites. This recruitment of ZO-1 was dependent on afadin but independent of α-catenin and ponsin. These results indicate that ZO-1 localizes to cadherin-based AJs through interactions not only with α-catenin but also with the nectin-afadin system. |
| Starting Page | 1595 |
| File Format | |
| ISSN | 10591524 |
| Journal | Molecular Biology of the Cell |
| Issue Number | 6 |
| Volume Number | 12 |
| Language | English |
| Publisher | The American Society for Cell Biology |
| Publisher Date | 2001-06-01 |
| Access Restriction | Open |
| Rights Holder | The American Society for Cell Biology |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cell Biology Molecular Biology |
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