Machine learning and structure-based modeling for the prediction of UDP-glucuronosyltransferase inhibition.
iScience 2022;
25:105290. [PMID:
36304105 PMCID:
PMC9593791 DOI:
10.1016/j.isci.2022.105290]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 09/05/2022] [Accepted: 10/03/2022] [Indexed: 11/23/2022] Open
Abstract
UDP-glucuronosyltransferases (UGTs) are responsible for 35% of the phase II drug metabolism. In this study, we focused on UGT1A1, which is a key UGT isoform. Strong inhibition of UGT1A1 may trigger adverse drug/herb-drug interactions, or result in disorders of endobiotic metabolism. Most of the current machine learning methods predicting the inhibition of drug metabolizing enzymes neglect protein structure and dynamics, both being essential for the recognition of various substrates and inhibitors. We performed molecular dynamics simulations on a homology model of the human UGT1A1 structure containing both the cofactor- (UDP-glucuronic acid) and substrate-binding domains to explore UGT conformational changes. Then, we created models for the prediction of UGT1A1 inhibitors by integrating information on UGT1A1 structure and dynamics, interactions with diverse ligands, and machine learning. These models can be helpful for further prediction of drug-drug interactions of drug candidates and safety treatments.
UGTs are responsible for 35% of the phase II drug metabolism reactions
We created machine learning models for prediction of UGT1A1 inhibitors
Our simulations suggested key residues of UGT1A1 involved in the substrate binding
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