Ion channel chameleons: Switching ion selectivity by alternative splicing.

Ion channel chameleons: Switching ion selectivity by alternative splicing.
复制标题

离子通道变色龙:通过选择性剪接开关离子选择性。

DOI:
10.1016/j.jbc.2023.102946
复制
发表时间:
2023-03
影响因子:
4.8
通讯作者:
Ben-Johny, Manu
Ben-Johny, Manu
中科院分区:
生物学2区
文献类型:
--
作者:
Hsu, Allen L.;Ben-Johny, Manu

文献摘要

参考文献

相似文献

电压门控钠和钙通道是不同的、进化上相关的离子通道,尽管共享总体相似的结构,但它们实现了显著的离子选择性。经典研究表明,离子选择性是由离子与通道孔的特异性结合决定的,这是由选择性过滤器(SF)内的特征氨基酸序列实现的。通过研究池塘蜗牛(Eschernaea stagnalis)的祖先通道,Guan et al.在最近的JBC文章中显示,这种成熟的机制可以通过选择性剪接进行调节,允许单个CaV3基因根据细胞环境编码Ca2+渗透性和Na+渗透性通道。这些发现阐明了调节生理学中离子选择性的机制和离子选择性的进化基础。
Voltage-gated sodium and calcium channels are distinct, evolutionarily related ion channels that achieve remarkable ion selectivity despite sharing an overall similar structure. Classical studies have shown that ion selectivity is determined by specific binding of ions to the channel pore, enabled by signature amino acid sequences within the selectivity filter (SF). By studying ancestral channels in the pond snail (Lymnaea stagnalis), Guan et al. showed in a recent JBC article that this well-established mechanism can be tuned by alternative splicing, allowing a single CaV3 gene to encode both a Ca2+-permeable and an Na+-permeable channel depending on the cellular context. These findings shed light on mechanisms that tune ion selectivity in physiology and on the evolutionary basis of ion selectivity.
DOI: 10.1038/s41586-021-03819-2
发表时间: 2021-08
期刊: Nature
影响因子: 64.8
作者:
Jumper J;Evans R;Pritzel A;Green T;Figurnov M;Ronneberger O;Tunyasuvunakool K;Bates R;Žídek A;Potapenko A;Bridgland A;Meyer C;Kohl SAA;Ballard AJ;Cowie A;Romera-Paredes B;Nikolov S;Jain R;Adler J;Back T;Petersen S;Reiman D;Clancy E;Zielinski M;Steinegger M;Pacholska M;Berghammer T;Bodenstein S;Silver D;Vinyals O;Senior AW;Kavukcuoglu K;Kohli P;Hassabis D
通讯作者: Hassabis D
DOI: 10.1038/nature12775
发表时间: 2014-01-02
期刊: Nature
影响因子: 64.8
作者:
通讯作者: --
DOI: 10.1093/molbev/msr149
发表时间: 2012-01
影响因子: 10.7
作者:
Cai X;Clapham DE
通讯作者: Clapham DE
DOI: 10.1073/pnas.1201884109
发表时间: 2012-06-26
影响因子: 11.1
作者:
Zakon, Harold H.
通讯作者: Zakon, Harold H.
DOI: 10.1016/j.jbc.2022.102621
发表时间: 2022-12
影响因子: 4.8
作者:
Guan, Wendy;Orellana, Kaidy G.;Stephens, Robert F.;Zhorov, Boris S.;Spafford, J. David
通讯作者: Spafford, J. David