An integrated workflow for crosslinking mass spectrometry

  • Mendes M
  • Fischer L
  • Chen Z
  • et al.
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Abstract

© 2019 The Authors. Published under the terms of the CC BY 4.0 license We present a concise workflow to enhance the mass spectrometric detection of crosslinked peptides by introducing sequential digestion and the crosslink identification software xiSEARCH. Sequential digestion enhances peptide detection by selective shortening of long tryptic peptides. We demonstrate our simple 12-fraction protocol for crosslinked multi-protein complexes and cell lysates, quantitative analysis, and high-density crosslinking, without requiring specific crosslinker features. This overall approach reveals dynamic protein–protein interaction sites, which are accessible, have fundamental functional relevance and are therefore ideally suited for the development of small molecule inhibitors.

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CITATION STYLE

APA

Mendes, M. L., Fischer, L., Chen, Z. A., Barbon, M., O’Reilly, F. J., Giese, S. H., … Rappsilber, J. (2019). An integrated workflow for crosslinking mass spectrometry. Molecular Systems Biology, 15(9). https://doi.org/10.15252/msb.20198994

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