Pharmmaker: Pharmacophore modeling and hit identification based on druggability simulations
Recent years have seen progress in druggability simulations, that is, molecular dynamics simulations of target proteins in solutions containing drug‐like probe molecules to characterize their drug‐binding abilities, if any. An important consecutive step is to analyze the trajectories to construct ph...
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Published in | Protein science Vol. 29; no. 1; pp. 76 - 86 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Hoboken, USA
John Wiley & Sons, Inc
01.01.2020
Wiley Subscription Services, Inc |
Subjects | |
Online Access | Get full text |
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Summary: | Recent years have seen progress in druggability simulations, that is, molecular dynamics simulations of target proteins in solutions containing drug‐like probe molecules to characterize their drug‐binding abilities, if any. An important consecutive step is to analyze the trajectories to construct pharmacophore models (PMs) to use for virtual screening of libraries of small molecules. While considerable success has been observed in this type of computer‐aided drug discovery, a systematic tool encompassing multiple steps from druggability simulations to pharmacophore modeling, to identifying hits by virtual screening of libraries of compounds, has been lacking. We address this need here by developing a new tool, Pharmmaker, building on the DruGUI module of our ProDy application programming interface. Pharmmaker is composed of a suite of steps: (Step 1) identification of high affinity residues for each probe molecule type; (Step 2) selecting high affinity residues and hot spots in the vicinity of sites identified by DruGUI; (Step 3) ranking of the interactions between high affinity residues and specific probes; (Step 4) obtaining probe binding poses and corresponding protein conformations by collecting top‐ranked snapshots; and (Step 5) using those snapshots for constructing PMs. The PMs are then used as filters for identifying hits in structure‐based virtual screening. Pharmmaker, accessible online at http://prody.csb.pitt.edu/pharmmaker, can be used in conjunction with other tools available in ProDy. |
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Bibliography: | Funding information National Institute of General Medical Sciences, Grant/Award Number: P41GM103712; National Institute on Drug Abuse, Grant/Award Number: P30DA035778 Funding information National Institute of General Medical Sciences, Grant/Award Number: P41GM103712; National Institute on Drug Abuse, Grant/Award Number: P30DA035778 Ji Young Lee and James M. Krieger contributed equally to this work. |
ISSN: | 0961-8368 1469-896X |
DOI: | 10.1002/pro.3732 |