Phosphorylation in protein-protein binding: effect on stability and function
Open accessAbstract
Posttranslational modifications offer a dynamic way to regulate protein activity, subcellular localization, and stability. Here we estimate the effect of phosphorylation on protein binding and function for different types of complexes from human proteome. We find that phosphorylation sites tend to be located on binding interfaces in heterooligomeric and weak transient homooligomeric complexes. Analysis of molecular mechanisms of phosphorylation shows that phosphorylation may modulate the strength of interactions directly on interfaces and that binding hotspots tend to be phosphorylated in heterooligomers. Although the majority of complexes do not show significant estimated stability differences upon phosphorylation or dephosphorylation, for about one-third of all complexes it causes relatively large changes in binding energy. We discuss the cases where phosphorylation mediates the complex formation and regulates the function. We show that phosphorylation sites are more likely to be evolutionary conserved than other interfacial residues.
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PTMs are known to function as molecular switches by affecting protein-protein interactions.
“PTMs are known to function as molecular switches by affecting protein-protein interactions (Chen, Liu et al., 2020, Nishi, Hashimoto et al., 2011).”
From SHARPIN S146 phosphorylation mediates ARP2/3 interaction, cancer cell invasion and metastasis (2022) · cites this paper as Nishi, Hashimoto et al., 2011
The Introduction says phosphorylation can modulate the nature and strength of protein-protein interactions, and the Discussion describes reversible phosphorylation as a mechanism for regulating protein activity. This supports the switch-like mechanism for phosphorylation, but the paper does not establish it for PTMs generally. (LLM, conf=0.82)
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- Authors
- Nishi, H., Hashimoto, K., & Panchenko, A. R.
- Affiliations
- National Institutes of Health (US)
- Corresponding author
- Panchenko, Anna R.
- Venue
- Structure
- Publisher
- Elsevier BV
- Published
- 2011-12
- Volume
- 19
- Issue
- 12
- Pages
- 1807-1815
- ISSN
- 0969-2126 (ISSN-L)
- PMC
- PMC3240861
- OpenAlex
- W2010516785
- Cited by
- 322
- References
- 5
- Citations by year
- 2026: 22 · 2025: 34 · 2024: 30 · 2023: 16 · 2022: 21 · 2021: 30 · 2020: 23 · 2019: 26 · 2018: 26 · 2017: 20 · 2016: 19 · 2015: 15 · 2014: 21 · 2013: 10 · 2012: 8
- FWCI
- 4.87
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Structure (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institutes of Health (Z99 LM999999, Z99 HL999999, Z99 MH999999, Z99CL999999)
- U.S. National Library of Medicine
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
- Physical Sciences › Chemistry › Spectroscopy › Advanced Proteomics Techniques and Applications
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
- Keywords
- protein phosphorylation, protein-protein binding, binding interface, protein complex stability, binding energy, binding hot spots, post-translational modification, dephosphorylation, evolutionary conservation, human proteome
- MeSH terms
- Binding Sites, Humans, Phosphorylation, Protein Conformation, Proteins, Evolution, Molecular, Proteome
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