The NEMP family supports metazoan fertility and nuclear envelope stiffness

Yonit Tsatskis, Robyn Rosenfeld, Joel D. Pearson, Curtis Boswell, Yi Qu, Kyunga Kim, Lacramioara Fabian, Ariz Mohammad, Xian Wang, Michael I. Robson, Karen Krchma, Jun Wu, João Gonçalves, Didier Hodzic, Shu Wu, Daniel Potter, Laurence Pelletier, Wade H. Dunham, Anne Claude Gingras, Yu SunJin Meng, Dorothea Godt, Tim Schedl, Brian Ciruna, Kyunghee Choi, John R.B. Perry, Rod Bremner, Eric C. Schirmer, Julie A. Brill, Andrea Jurisicova, Helen McNeill

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Human genome-wide association studies have linked single-nucleotide polymorphisms (SNPs) in NEMP1 (nuclear envelope membrane protein 1) with early menopause; however, it is unclear whether NEMP1 has any role in fertility. We show that whole-animal loss of NEMP1 homologs in Drosophila, Caenorhabditis elegans, zebrafish, and mice leads to sterility or early loss of fertility. Loss of Nemp leads to nuclear shaping defects, most prominently in the germ line. Biochemical, biophysical, and genetic studies reveal that NEMP proteins support the mechanical stiffness of the germline nuclear envelope via formation of a NEMP-EMERIN complex. These data indicate that the germline nuclear envelope has specialized mechanical properties and that NEMP proteins play essential and conserved roles in fertility.

Original languageEnglish
Article numbereabb4591
JournalScience Advances
Volume6
Issue number35
DOIs
StatePublished - Aug 2020

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