Repurposing an endogenous degradation system for rapid and targeted depletion of C. elegans proteins.

Journal Article (Journal Article)

The capability to conditionally inactivate gene function is essential for understanding the molecular basis of development. In gene and mRNA targeting approaches, protein products can perdure, complicating genetic analysis. Current methods for selective protein degradation require drug treatment or take hours for protein removal, limiting their utility in studying rapid developmental processes in vivo. Here, we repurpose an endogenous protein degradation system to rapidly remove targeted C. elegans proteins. We show that upon expression of the E3 ubiquitin ligase substrate-recognition subunit ZIF-1, proteins tagged with the ZF1 zinc-finger domain can be quickly degraded in all somatic cell types examined with temporal and spatial control. We demonstrate that genes can be engineered to become conditional loss-of-function alleles by introducing sequences encoding the ZF1 tag into endogenous loci. Finally, we use ZF1 tagging to establish the site of cdc-42 gene function during a cell invasion event. ZF1 tagging provides a powerful new tool for the analysis of dynamic developmental events.

Full Text

Duke Authors

Cited Authors

  • Armenti, ST; Lohmer, LL; Sherwood, DR; Nance, J

Published Date

  • December 2014

Published In

Volume / Issue

  • 141 / 23

Start / End Page

  • 4640 - 4647

PubMed ID

  • 25377555

Pubmed Central ID

  • PMC4302935

Electronic International Standard Serial Number (EISSN)

  • 1477-9129

International Standard Serial Number (ISSN)

  • 0950-1991

Digital Object Identifier (DOI)

  • 10.1242/dev.115048


  • eng