Modeling genome-wide enzyme evolution predicts strong epistasis underlying catalytic turnover rates

The catalytic efficiency of many enzymes is lower than the theoretical maximum. Here, the authors combine genome-scale metabolic modeling with population genetics models to simulate enzyme evolution, and find that strong epistasis limits turnover numbers due to diminishing returns of fitness gains.

Bibliographic Details
Main Authors: David Heckmann, Daniel C. Zielinski, Bernhard O. Palsson
Format: Article
Language:English
Published: Nature Publishing Group 2018-12-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-018-07649-1