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SET-9 and SET-26 are H3K4me3 readers and play critical roles in germline development and longevity

Authors :
Wenke Wang
Amaresh Chaturbedi
Minghui Wang
Serim An
Satheeja Santhi Velayudhan
Siu Sylvia Lee
Source :
eLife, Vol 7 (2018)
Publication Year :
2018
Publisher :
eLife Sciences Publications Ltd, 2018.

Abstract

C. elegans SET-9 and SET-26 are highly homologous paralogs that share redundant functions in germline development, but SET-26 alone plays a key role in longevity and heat stress response. Whereas SET-26 is broadly expressed, SET-9 is only detectable in the germline, which likely accounts for their different biological roles. SET-9 and SET-26 bind to H3K4me3 with adjacent acetylation marks in vitro and in vivo. In the soma, SET-26 acts through DAF-16 to modulate longevity. In the germline, SET-9 and SET-26 restrict H3K4me3 domains around SET-9 and SET-26 binding sites, and regulate the expression of specific target genes, with critical consequence on germline development. SET-9 and SET-26 are highly conserved and our findings provide new insights into the functions of these H3K4me3 readers in germline development and longevity.

Details

Language :
English
ISSN :
2050084X
Volume :
7
Database :
Directory of Open Access Journals
Journal :
eLife
Publication Type :
Academic Journal
Accession number :
edsdoj.bbc348751ab54e849c3cafc3d1840b02
Document Type :
article
Full Text :
https://doi.org/10.7554/eLife.34970