Abstract

Proteochemometric (PCM) modelling is a computational method to model the bioactivity of multiple ligands against multiple related protein targets simultaneously.

Highlights

  • Proteochemometrics (PCM) modelling describes methods where a computational description from the ligand side of the system is combined with a description of the biological side being studied and both are related to a particular readout of interest.[15,16]

  • PCM relates to personalized medicine as it can predict the effect of a ligand on a complex biological system, e.g. cell line, from genotypic information.[17]

  • In addition to traditional therapeutic targets, which continue to Review be well represented in recent PCM studies, other applications and techniques are gaining ground steadily, namely: (i) the modelling of the selectivity of viral protein mutants, mainly HIV; (ii) the inclusion of bioactivity information from mammal orthologues; (iii) the usage of 3-dimensional target information; and (iv) toxicogenomics and pharmacogenomics

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Summary

Available bioactivity data is growing: but can we make sense of it?

The term chemogenomics comprises techniques capable to capitalize on this huge amount of bioactivity data by considering compound and target information, in order to nd unknown interactions between (new) compounds and their (new) targets.[13,14] Proteochemometrics (PCM) modelling describes methods where a computational description from the ligand side of the system is combined with a description of the biological side being studied and both are related to a particular readout of interest.[15,16]. In this context, ligands are typically small molecules biologics have been explored. PCM relates to personalized medicine as it can predict the effect of a ligand on a complex biological system, e.g. cell line, from genotypic information.[17]

Synergy between ligand and target space
PCM as a practical approach to use chemogenomics data
HDAC isoforms
CYP 450 isoforms
Input data for PCM
Target descriptors
Ligand descriptors
Cross-term descriptors
Validation of PCM models
Review outline
Machine learning in PCM
PCM applied to protein target families
G protein-coupled receptors
Kinases
Histone modi cation and DNA methylation
Viral mutants
Novel target similarity measure
Including 3D information of protein targets in PCM
PCM in predicting ligand binding free energy
PCM as an approach to extrapolate bioactivity data between species
PCM applied to pharmacogenomics and toxicogenomics data
Other potential PCM applications
PCM limitations
Findings
Conclusions
Full Text
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