Ankyrin-G promotes cyclic nucleotide-gated channel transport to rod photoreceptor sensory cilia.
Ankyrin-G promotes cyclic nucleotide-gated channel transport to rod photoreceptor sensory cilia.
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DOI:
10.1126/science.1169789
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发表时间:
2009-03-20
期刊:
影响因子:
--
通讯作者:
Bennett V
中科院分区:
文献类型:
--
作者:
Kizhatil K;Baker SA;Arshavsky VY;Bennett V
Cyclic nucleotide-gated channels localize exclusively to the plasma membrane of photosensitive outer segments of rod photoreceptors where they generate the electrical response to light. Here we found that targeting of cyclic nucleotide-gated channels to the rod outer segment required their interaction with ankyrin-G. Ankyrin-G localized exclusively to rod outer segments, coimmunoprecipitated with the cyclic nucleotide-gated channel, and bound to the C-terminal domain of the β1-subunit. Ankyrin-G depletion in neonatal mouse retinas markedly reduced cyclic nucleotide-gated channel expression. Transgenic expression of cyclic nucleotide-gated channel β-subunit mutants in Xenopus rods showed that ankyrin-G binding was necessary and sufficient for targeting of the β1-subunit to outer segments. Thus ankyrin-G is required for transport of cyclic nucleotide-gated channels to the plasma membrane of rod outer segments.
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DOI:
10.1083/jcb.200806009
发表时间:
2008-11-03
期刊:
The Journal of cell biology
影响因子:
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作者:
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