A Fast and Economical Sample Preparation Protocol for Interaction Proteomics Analysis

Miguel A. Gonzalez-Lozano, Frank Koopmans, Iryna Paliukhovich, August B. Smit, Ka Wan Li*

*Corresponding author for this work

Research output: Contribution to JournalArticleAcademicpeer-review


A simple and fast immunoprecipitation (IP) protocol is designed with the sample preparation incorporated, applicable to both low and high throughput. This new protocol combines two procedures based on magnetic beads in 96-well plate format. Protein complexes are captured by antibodies and magnetic beads conjugated with protein A. Proteins are washed and on-bead digested by using Single-Pot solid-phase sample preparation (SP3). The whole IP-SP3 approach can be completed in one day, which is considerably faster compared to the classical approach. No major quantitative differences are found between SP3 and FASP (filter-aided sample preparation) or a longer incubation protocol. Taken together, the IP-SP3 protocol is a fast and economical approach easily applicable for large-scale protein interactome analysis.

Original languageEnglish
Article number1900027
Pages (from-to)1-3
Number of pages3
Issue number9
Early online date13 Mar 2019
Publication statusPublished - May 2019


  • 96-well plate
  • immunoprecipitation
  • magnetic beads
  • proteomics
  • sample preparation


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