A proximity labeling protocol to probe proximity interactions in C. elegans

STAR Protoc. 2021 Dec 2;2(4):100986. doi: 10.1016/j.xpro.2021.100986. eCollection 2021 Dec 17.

Abstract

Enzyme-catalyzed proximity labeling (PL) has emerged as a critical approach for identifying protein-protein proximity interactions in cells; however, PL techniques were not historically practical in living multicellular organisms due to technical limitations. Here, we present a protocol for applying PL to living C. elegans using the biotin ligase mutant enzyme TurboID. We demonstrated PL in a tissue-specific and region-specific manner by focusing on non-centrosomal MTOCs (ncMTOCs) of intestinal cells. This protocol is useful for targeted in vivo protein network profiling. For complete details on the use and execution of this protocol, please refer to Sanchez et al. (2021).

Keywords: Cell Biology; Developmental biology; Microscopy; Model Organisms; Molecular Biology; Molecular/Chemical Probes; Protein Biochemistry; Proteomics.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Animals
  • Biotinylation
  • Caenorhabditis elegans
  • Caenorhabditis elegans Proteins* / analysis
  • Caenorhabditis elegans Proteins* / chemistry
  • Caenorhabditis elegans Proteins* / metabolism
  • Molecular Imaging / methods*
  • Protein Interaction Mapping / methods*

Substances

  • Caenorhabditis elegans Proteins