Cited by 118Computational Drug Discovery MethodsProtein Structure and DynamicsProtein Interaction Studies and Fluorescence Analysis

CSM-lig: a web server for assessing and comparing protein-small molecule affinities

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Pires, Douglas E.V., Ascher, David B.·2016·Nucleic Acids Research

Abstract

Determining the affinity of a ligand for a given protein is a crucial component of drug development and understanding their biological effects. Predicting binding affinities is a challenging and difficult task, and despite being regarded as poorly predictive, scoring functions play an important role in the analysis of molecular docking results. Here, we present CSM-Lig (http://structure.bioc.cam.ac.uk/csm_lig), a web server tailored to predict the binding affinity of a protein-small molecule complex, encompassing both protein and small-molecule complementarity in terms of shape and chemistry via graph-based structural signatures. CSM-Lig was trained and evaluated on different releases of the PDBbind databases, achieving a correlation of up to 0.86 on 10-fold cross validation and 0.80 in blind tests, performing as well as or better than other widely used methods. The web server allows users to rapidly and automatically predict binding affinities of collections of structures and assess the interactions made. We believe CSM-lig would be an invaluable tool for helping assess docking poses, the effects of multiple mutations, including insertions, deletions and alternative splicing events, in protein-small molecule affinity, unraveling important aspects that drive protein-compound recognition.

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  • The graph-based signatures concept has proven to be a powerful approach and has been widely applied to the study of protein structure, including how mutations alter protein stability, dynamics and interactions with other molecules.

    “Our previously described graph-based signatures concept has proven to be a powerful approach and has been widely applied to the study of protein structure, including how mutations alter protein stability (20,26), dynamics (27) and interactions with other molecules (20,28–34).”

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Authors
Pires, D. E. V., & Ascher, D. B.
Affiliations
  • Fiocruz Minas (BR)
  • The University of Melbourne (AU)
Corresponding author
  • Pires, Douglas E.V.
  • Ascher, David B.
Venue
Nucleic Acids Research
Published
2016-05-05
Volume
44
Issue
W1
Pages
W557-W561
ISSN
  • 0305-1048 (ISSN-L)
  • 1362-4962
OpenAlex
W2346940354
Cited by
115
References
29
Citations by year
2026: 4 · 2025: 6 · 2024: 11 · 2023: 7 · 2022: 8 · 2021: 16 · 2020: 26 · 2019: 13 · 2018: 13 · 2017: 8 · 2016: 3
FWCI
11.35
Type
journal article
Language
en
Open access
Locations
  • Nucleic Acids Research (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Minerva Access (University of Melbourne) (submittedVersion, cc-by)
  • Americanae (AECID Library) (submittedVersion, other-oa)
  • Arca - Repositório Institucional da Fiocruz (submittedVersion, other-oa)
  • HighWire Press Open Archive (submittedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, other-oa)
  • Apollo (University of Cambridge) (submittedVersion, cc-by)
Funders
  • Research Councils UK
  • Fundação de Amparo à Pesquisa do Estado de Minas Gerais
  • Fundação Oswaldo Cruz
  • Conselho Nacional das Fundações Estaduais de Amparo à Pesquisa
  • Medical Research Council
  • National Health and Medical Research Council (1072476)
Topics
  • Physical Sciences › Computer Science › Computational Theory and Mathematics › Computational Drug Discovery Methods
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Interaction Studies and Fluorescence Analysis
Keywords
protein-ligand binding affinity prediction, scoring functions, molecular docking, PDBbind, web server, protein mutations, alternative splicing, drug development
MeSH terms
Ligands, Mutation, Protein Binding, Proteins, Software, Substrate Specificity, User-Computer Interface, Reproducibility of Results, Internet, Databases, Protein, Small Molecule Libraries, Molecular Docking Simulation, Datasets as Topic

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