In situ Dephosphorylation Assay with Recombinant Nil Phosphatase

Nilay Nandi, Charles Tracy, Helmut Kramer

Research output: Contribution to journalArticlepeer-review

Abstract

The activity of numerous autophagy-related proteins depends on their phosphorylation status, which places importance on understanding the responsible kinases and phosphatases. Great progress has been made in identifying kinases regulating autophagy, but much less is known about the phosphatases counteracting their function. Genetic screens and modern proteomic approaches provide powerful tools to identify candidate phosphatases, but further experiments are required to assign direct roles for candidates. We have devised a novel protocol to test the role of purified phosphatases in dephosphorylating specific targets in situ. This approach has the potential to visualize context-specific differences in target dephosphorylation that are not easily detected by lysate-based approaches such as Western blots.

Original languageEnglish (US)
Article numbere4513
JournalBio-protocol
Volume12
Issue number18
DOIs
StatePublished - Sep 20 2022

Keywords

  • Acinus
  • Autophagy
  • Cdk5
  • Drosophila
  • Metal-dependent phosphatases
  • Nilkantha
  • Phosphorylation

ASJC Scopus subject areas

  • Neuroscience(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)
  • Plant Science

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