The missing linker between SUN5 and PMFBP1 in sperm head-tail coupling apparatus.

The missing linker between SUN5 and PMFBP1 in sperm head-tail coupling apparatus.
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精子头尾耦合装置中SUN5和PMFBP1之间缺失的连接子

DOI:
10.1038/s41467-021-25227-w
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发表时间:
2021-08-13
影响因子:
16.6
通讯作者:
Yuan L
Yuan L
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Zhang Y;Liu C;Wu B;Li L;Li W;Yuan L

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精子头-尾偶联器(HTCA)确保精子头-尾的完整性,而缺陷HTCA导致无精子,使男性不育。在这里,我们表明,CENTLEIN是HTCA的完整性和功能不可或缺的,并在小鼠中CENTLEIN的失活导致精子断头和雄性不育。我们证明CENTLEIN直接与SUN 5和PMFBP 1相互作用,这两种蛋白质位于HTCA中并与无精子综合征相关。我们发现,Centleins的缺失使SUN 5和PMFBP 1分开,前者靠近精子头部,后者在断头尾部。我们发现,缺乏Sun 5导致CENTLEIN和PMFBP 1留在断头尾部,而破坏Pmfbp 1导致Sun 5和CENTLEIN留在分离的精子头部。这些结果表明,CENTLEIN协同SUN 5和PMFBP 1参与HTCA组装和精子头尾整合,表明CENTLEIN的损伤可能与人类无精子综合征有关。
The sperm head-to-tail coupling apparatus (HTCA) ensures sperm head-tail integrity while defective HTCA causes acephalic spermatozoa, rendering males infertile. Here, we show that CENTLEIN is indispensable for HTCA integrity and function, and that inactivation of CENTLEIN in mice leads to sperm decapitation and male sterility. We demonstrate that CENTLEIN directly interacts with both SUN5 and PMFBP1, two proteins localized in the HTCA and related with acephalic spermatozoa syndrome. We find that the absence ofCentleinsets SUN5 and PMFBP1 apart, the former close to the sperm head and the latter in the decapitated tail. We show that lack ofSun5results in CENTLEIN and PMFBP1 left in the decapitated tail, while disruption ofPmfbp1results in SUN5 and CENTLEIN left on the detached sperm head. These results demonstrate that CENTLEIN cooperating with SUN5 and PMFBP1 participates in the HTCA assembly and integration of sperm head to the tail, indicating that impairments ofCENTLEINmight be associated with acephalic spermatozoa syndrome in humans.
DOI: 10.1002/dvdy.22563
发表时间: 2011-03
影响因子: 2.5
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