Promotion of row 1-specific tip complex condensates by Gpsm2-Gαi provides insights into row identity of the tallest stereocilia.
Promotion of row 1-specific tip complex condensates by Gpsm2-Gαi provides insights into row identity of the tallest stereocilia.
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Gpsm2-Gαi 对第 1 行特定尖端复合物冷凝物的促进提供了对最高静纤毛的行身份的见解
DOI:
10.1126/sciadv.abn4556
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发表时间:
2022-06-10
期刊:
影响因子:
13.6
通讯作者:
中科院分区:
文献类型:
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作者:
The mechanosensory stereocilia in hair cells are organized into rows of graded height, a property crucial for auditory perception. Gpsm2-Gαi-Whirlin-Myo15-Eps8 complex at tips of the tallest stereocilia is proposed to define hair bundle row identity, although the underlying mechanism remains elusive. Here, we find that Gpsm2 could undergo phase separation. Moreover, row 1–specific Gpsm2-Gαi complex significantly promotes the formation of the five-component tip complex density (5xTCD) condensates. The 5xTCD condensates display much stronger actin-bundling ability than those without Gpsm2-Gαi, which may provide critical insights into how Gpsm2-Gαi specifies the tallest stereocilia. A deafness-associated mutation of Gpsm2 leads to impaired formation of the 5xTCD condensates and consequently reduced actin bundling, providing possible clues for etiology of hearing loss in patients with Chudley-McCullough syndrome. Row 1–specific Gpsm2-Gαi–mediated condensates enrich actin dynamic regulators, providing insights into hair bundle row identity.
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影响因子:
16.6
作者:
Mauriac SA;Hien YE;Bird JE;Carvalho SD;Peyroutou R;Lee SC;Moreau MM;Blanc JM;Geyser A;Medina C;Thoumine O;Beer-Hammer S;Friedman TB;Rüttiger L;Forge A;Nürnberg B;Sans N;Montcouquiol M
通讯作者:
Montcouquiol M
影响因子:
64.5
作者:
Gillespie PG;Müller U
通讯作者:
Müller U
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:
30.8
作者:
Mburu, P;Mustapha, M;Brown, SDM
通讯作者:
Brown, SDM
DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH