TUBB4B variants specifically impact ciliary function, causing a ciliopathic spectrum
TUBB4B variants specifically impact ciliary function, causing a ciliopathic spectrum
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TUBB4B 变异特别影响纤毛功能,导致纤毛病谱
DOI:
10.1101/2022.10.19.22280748
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Mechaussier S
中科院分区:
文献类型:
--
作者:
Mechaussier S
Cilia are small microtubule-based structures found on the surface of most mammalian cells, which have key sensory and sometimes motile functions. Primary ciliary dyskinesia (PCD) is a type of ciliopathy caused by defects in motile cilia. The genetic basis of PCD is only partially understood. Studying a cohort of 11 human patients with PCD, we find thatde novomutations inTUBB4B, a beta tubulin isotype, cause three distinct classes of ciliopathic disease.In vivostudies in mice show thatTubb4bplays a specific role in cilia, building centrioles and axonemes in multiciliated cells. Examining the effects of specific TUBB4B variants in cells and in mice, we further demonstrate that distinctTUBB4Bmutations differentially affect microtubule dynamics and cilia formation in a dominant negative manner. Finally, structure-function studies reveal that different TUBB4B mutations disrupt distinct tubulin interfaces. Importantly, these molecular differences correlate with disease features. We show that tubulin heterodimer-impairing TUBB4B variants underlie nonsyndromic PCD, whilst additional renal and sensorineural ciliopathic features in a syndromic PCD subtype arise from microtubule lumenal interface-impaired TUBB4B variants. These findings suggest that specific tubulin isotypes have distinct and non-redundant subcellular functions, and demonstrate that human tubulinopathies can be drivers of ciliopathic syndromes.
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影响因子:
9.8
作者:
Wallmeier, Julia;Frank, Diana;Omran, Heymut
通讯作者:
Omran, Heymut
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
通讯作者:
--
影响因子:
1.2
作者:
Khan, Muznah;Gasser, Stephan
通讯作者:
Gasser, Stephan
影响因子:
64.5
作者:
Tim Stuart;Andrew Butler;Paul J. Hoffman;Christoph Hafemeister;Efthymia Papalexi;William M. Mauck;
通讯作者:
Tim Stuart;Andrew Butler;Paul J. Hoffman;Christoph Hafemeister;Efthymia Papalexi;William M. Mauck;
DOI:
10.1073/pnas.91.24.11358
发表时间:
1994-11-22
影响因子:
11.1
作者:
PANDA, D;MILLER, HP;WILSON, L
通讯作者:
WILSON, L