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The TRIM-NHL protein NHL-2 is a co-factor in the nuclear and somatic RNAi pathways in C. elegans.

Gregory M Davis | Shikui Tu | Joshua Wt Anderson | Rhys N Colson | Menachem J Gunzburg | Michelle A Francisco | Debashish Ray | Sean P Shrubsole | Julia A Sobotka | Uri Seroussi | Robert X Lao | Tuhin Maity | Monica Z Wu | Katherine McJunkin | Quaid D Morris | Timothy R Hughes | Jacqueline A Wilce | Julie M Claycomb | Zhiping Weng | Peter R Boag
eLife | 2018

Proper regulation of germline gene expression is essential for fertility and maintaining species integrity. In the C. elegans germline, a diverse repertoire of regulatory pathways promote the expression of endogenous germline genes and limit the expression of deleterious transcripts to maintain genome homeostasis. Here we show that the conserved TRIM-NHL protein, NHL-2, plays an essential role in the C. elegans germline, modulating germline chromatin and meiotic chromosome organization. We uncover a role for NHL-2 as a co-factor in both positively (CSR-1) and negatively (HRDE-1) acting germline 22G-small RNA pathways and the somatic nuclear RNAi pathway. Furthermore, we demonstrate that NHL-2 is a bona fide RNA binding protein and, along with RNA-seq data point to a small RNA independent role for NHL-2 in regulating transcripts at the level of RNA stability. Collectively, our data implicate NHL-2 as an essential hub of gene regulatory activity in both the germline and soma.

Pubmed ID: 30575518

Research resources used in this publication

None found

Antibodies used in this publication

None found

Associated grants

  • Agency: NIH HHS, United States
    Id: P40 OD010440
  • Agency: NICHD NIH HHS, United States
    Id: P01 HD078253
  • Agency: NIDDK NIH HHS, United States
    Id: DK075147
  • Agency: CIHR, Canada
    Id: MOP-125894
  • Agency: NIH HHS, United States
    Id: HD078253
  • Agency: CIHR, Canada
    Id: MOP-274660
  • Agency: CIHR, Canada
    Id: CAP- 783 262134

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