Cited by 43Machine Learning in BioinformaticsProtein Structure and DynamicsEnzyme Catalysis and Immobilization

DLTKcat: deep learning-based prediction of temperature-dependent enzyme turnover rates

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Qiu, Sizhe, Zhao, Simiao, Yang, Aidong·2023·Briefings in Bioinformatics

Published version of a preprint

Abstract

The enzyme turnover rate, ${k}_{cat}$, quantifies enzyme kinetics by indicating the maximum efficiency of enzyme catalysis. Despite its importance, ${k}_{cat}$ values remain scarce in databases for most organisms, primarily because of the cost of experimental measurements. To predict ${k}_{cat}$ and account for its strong temperature dependence, DLTKcat was developed in this study and demonstrated superior performance (log10-scale root mean squared error = 0.88, R-squared = 0.66) than previously published models. Through two case studies, DLTKcat showed its ability to predict the effects of protein sequence mutations and temperature changes on ${k}_{cat}$ values. Although its quantitative accuracy is not high enough yet to model the responses of cellular metabolism to temperature changes, DLTKcat has the potential to eventually become a computational tool to describe the temperature dependence of biological systems.

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Authors
Qiu, S., Zhao, S., & Yang, A.
Affiliations
University of Oxford (GB)
Corresponding author
Yang, Aidong
Venue
Briefings in Bioinformatics
Published
2023-11-22
Volume
25
Issue
1
ISSN
  • 1467-5463 (ISSN-L)
  • 1477-4054
OpenAlex
W4390678097
Cited by
43
References
12
Citations by year
2026: 18 · 2025: 19 · 2024: 6
FWCI
3.83
Type
journal article
Language
en
Open access
Locations
  • Briefings in Bioinformatics (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
University of Oxford
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Machine Learning in Bioinformatics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Enzyme Catalysis and Immobilization
Keywords
enzyme turnover rate, temperature dependence, enzyme kinetics, deep learning, temperature effects on metabolism
MeSH terms
Deep Learning, Amino Acid Sequence, Catalysis, Temperature, Databases, Factual

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