Structures of tweety homolog proteins TTYH2 and TTYH3 reveal a Ca2+-dependent switch from intra- to intermembrane dimerization
Tweety Homologs (TTYHs) are highly conserved membrane proteins, whose functions remain poorly understood. Here, the authors present the cryo-EM structures of murine TTYH2 and TTYH3 that form cis-dimers in the presence of Ca2+, whereas in the absence of Ca2+ TTYH2 adopts monomeric and trans-dimeric s...
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| Autores principales: | , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Nature Portfolio
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/35d41ab2716c4fb08b443aa80b6bed5c |
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| Sumario: | Tweety Homologs (TTYHs) are highly conserved membrane proteins, whose functions remain poorly understood. Here, the authors present the cryo-EM structures of murine TTYH2 and TTYH3 that form cis-dimers in the presence of Ca2+, whereas in the absence of Ca2+ TTYH2 adopts monomeric and trans-dimeric structures. The presented structures lack ion conducting pathways, which is consistent with results from electrophysiology measurements. |
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