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Correlating enzymatic reactivity for different substrates using transferable data- driven collective variables
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DOI：10.1073/pnas.2416621121.png)
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Machine learning (ML) is transforming the investigation of complex biological processes. In enzymatic catalysis, one significant challenge is identifying the reactive conformations (RC) of the enzyme:substrate complex where the substrate assumes a precise arrangement in the active site necessary to initiate a reaction. Traditional methods are hindered by the complexity of the multidimensional free energy landscape involved in the transition from nonreactive to reactive conformations. Here, we applied ML techniques to address this challenge, focusing on human pancreatic alpha- amylase, a crucial enzyme in type- II diabetes treatment. Using ML- based collective variables (CVs), we correlated the probability of being in a RC with the experimental catalytic activity of several malto- oligosaccharide substrates. Our findings demonstrate a remarkable transferability of these CVs across various compounds, significantly streamlining the modeling process and reducing both computational demand and manual intervention in setting up simulations for new substrates. This approach not only advances our understanding of enzymatic processes but also holds substantial potential for accelerating drug discovery by enabling rapid and accurate evaluation of drug efficacy across different generations of inhibitors.
Keyword:
machine learning- based collective variables
transfer learning
active site and substrate pre-organization
enzyme catalysis
glycolysis
期刊
P
IF:
9.1
论文数:
10.8W
被引数:
73.5W
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