PROMIS: Co-fractionation Mass Spectrometry for Analysis of Protein-Metabolite Interactions

Methods Mol Biol. 2023:2554:141-153. doi: 10.1007/978-1-0716-2624-5_10.

Abstract

The roles of small molecules in every aspect of life have been gaining increased recognition. Many are known to exert their effect by binding proteins-but a comprehensive overview of protein-metabolite interactions (PMIs) is missing. Recently we devised a non-targeted method for detecting PMIs using size-exclusion chromatography followed by proteomic and metabolomic analysis: PROMIS. Under test this method was able to identify known PMIs such as enzyme-cofactor complexes as well as novel ones.

Keywords: Co-fractionation; Ligand; Mass spectrometry; Protein; Protein–metabolite interactions; Size exclusion chromatography.

Publication types

  • Review

MeSH terms

  • Chromatography, Gel
  • Mass Spectrometry / methods
  • Metabolomics
  • Proteins*
  • Proteomics* / methods

Substances

  • Proteins