T-cadherin structures reveal a novel adhesive binding mechanism.
T-cadherin structures reveal a novel adhesive binding mechanism.
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DOI:
10.1038/nsmb.1781
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发表时间:
2010-03
影响因子:
16.8
通讯作者:
中科院分区:
文献类型:
--
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Vertebrate genomes encode nineteen “classical” cadherins and about a hundred non-classical cadherins. Adhesion by classical cadherins depends on binding interactions in their amino terminal EC1 domains, which swap N-terminal β-strands between partner molecules from apposing cells. However, strand swapping sequence signatures are absent from non-classical cadherins, raising the question of how these proteins function in adhesion. Here we show that T-cadherin, a GPI-anchored cadherin, forms dimers through an alternative non-swapped interface near the EC1-EC2 calcium binding sites. Mutations within this interface ablate the adhesive capacity of T-cadherin. These non-adhesive T-cadherin mutants also lose the ability to regulate neurite outgrowth from T-cadherin expressing neurons. Our findings reveal the likely molecular architecture of the T-cadherin homophilic interface, and reveal its requirement for axon outgrowth regulation. The adhesive binding mode employed by T-cadherin may also be used by other non-classical cadherins.
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影响因子:
64.5
作者:
Drees, F;Pokutta, S;Weis, WI
通讯作者:
Weis, WI
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
影响因子:
16.2
作者:
Domeniconi, M;Zampieri, N;Filbin, MT
通讯作者:
Filbin, MT
影响因子:
4.8
作者:
Bai, SM;Ghoshal, K;Jacob, ST
通讯作者:
Jacob, ST
影响因子:
4
作者:
Harrison, OJ;Corps, EM;Kilshaw, PJ
通讯作者:
Kilshaw, PJ