pes-2.1 (Patterned Expression Site)



pes-2 encodes a protein containing a predicted signal sequence and an F-box, a motif believed to mediate protein-protein interactions either with homologs of yeast Skp1p or with other proteins; pes-2 was identified in two different molecular screens, a promoter-trapping screen and a screen for genes that are preferentially transcribed in pre-gastrulation embryos; by homology, pes-2 is predicted to function in ubiquitin-proteasome mediated protein degradation; pes-2 may also play a role in lifespan determination, as its expression is downregulated in young adult worms containing loss-of-function mutations in the daf-2 insulin/IGF-1 receptor, and loss of pes-2 function via RNA-mediated interference (RNAi) can enhance animal survival rates; pes-2 expression is first detected in 4- to 8-cell stage embryos, continues in early embryogenesis in cells from the AB, MS, and E founder cell lineages, and in later embryogenesis is becomes restricted to hypodermal cells; expression in larvae and adults has not yet been reported.

Dataset version

Last updated 06 May 2019
Date made available2004

Cite this

Hope, I. A. (Creator), Pettitt, J. (Creator) (2004). pes-2.1 (Patterned Expression Site) . Wormbase.