Cadherins can dimerize via asymmetric interactions.

Cadherins can dimerize via asymmetric interactions.
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DOI:
10.1002/1873-3468.14373
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发表时间:
2022-07
期刊:
影响因子:
3.5
通讯作者:
Sivasankar, Sanjeevi
Sivasankar, Sanjeevi
中科院分区:
生物学3区
文献类型:
--
作者:
Priest, Andrew Vae;Koirala, Ramesh;Sivasankar, Sanjeevi

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Cadherins are essential cell-cell adhesion proteins that interact in two distinct conformations: X-dimers and strand-swap dimers. Both X-dimers and strand-swap dimers are thought to exclusively rely on symmetric sets of interactions between key amino acids on both cadherin binding partners. Here, we use single-molecule Atomic Force Microscopy (AFM) and computer simulations to show that symmetry in cadherin binding is dispensable and that cadherins can also interact in a novel conformation that asymmetrically incorporates key elements of both strand-swap dimers and X-dimers. Our results clarify the biophysical rules for cadherin binding and demonstrate that cadherins interact in a more diverse range of conformations than previously understood.
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