Cited by 157Advanced Proteomics Techniques and ApplicationsMass Spectrometry Techniques and ApplicationsBioinformatics and Genomic Networks

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Reliable identification of protein-protein interactions by crosslinking mass spectrometry

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Abstract

Protein-protein interactions govern most cellular pathways and processes, and multiple technologies have emerged to systematically map them. Assessing the error of interaction networks has been a challenge. Crosslinking mass spectrometry is currently widening its scope from structural analyses of purified multi-protein complexes towards systems-wide analyses of protein-protein interactions (PPIs). Using a carefully controlled large-scale analysis of Escherichia coli cell lysate, we demonstrate that false-discovery rates (FDR) for PPIs identified by crosslinking mass spectrometry can be reliably estimated. We present an interaction network comprising 590 PPIs at 1% decoy-based PPI-FDR. The structural information included in this network localises the binding site of the hitherto uncharacterised protein YacL to near the DNA exit tunnel on the RNA polymerase.

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Metadata

Authors
Lenz, S., Sinn, L. R., O’Reilly, F. J., Fischer, L., Wegner, F., & Rappsilber, J.
Affiliations
  • Technische Universität Berlin (DE)
  • Wellcome Centre for Cell Biology (GB)
Corresponding author
Rappsilber, Juri
Venue
Nature Communications
Published
2021-06-11
Volume
12
Issue
1
Pages
3564-3564
ISSN
2041-1723 (ISSN-L)
OpenAlex
W3166761727
Cited by
157
References
4
Citations by year
2026: 28 · 2025: 25 · 2024: 45 · 2023: 28 · 2022: 19 · 2021: 9
FWCI
9.23
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Edinburgh Research Explorer (University of Edinburgh) (submittedVersion, cc-by)
Funders
Deutsche Forschungsgemeinschaft (426290502, 392923329/GRK2473)
Topics
  • Physical Sciences › Chemistry › Spectroscopy › Advanced Proteomics Techniques and Applications
  • Physical Sciences › Chemistry › Spectroscopy › Mass Spectrometry Techniques and Applications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bioinformatics and Genomic Networks
Keywords
protein-protein interaction, cross-linking mass spectrometry, false discovery rate, interaction networks, Escherichia coli, RNA polymerase, binding site identification, protein complex structure
MeSH terms
Escherichia coli, Mass Spectrometry, Proteome, Protein Interaction Mapping, Escherichia coli Proteins, Protein Interaction Maps

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