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Protein interaction potential landscapes for yeast replicative aging. | LitMetric

Protein interaction potential landscapes for yeast replicative aging.

Sci Rep

Department of Computer Science and Engineering, The University of Tennessee at Chattanooga, Chattanooga, TN, 37405, USA.

Published: March 2021

We proposed a novel interaction potential landscape approach to map the systems-level profile changes of gene networks during replicative aging in Saccharomyces cerevisiae. This approach enabled us to apply quasi-potentials, the negative logarithm of the probabilities, to calibrate the elevation of the interaction landscapes with young cells as a reference state. Our approach detected opposite landscape changes based on protein abundances from transcript levels, especially for intra-essential gene interactions. We showed that essential proteins play different roles from hub proteins on the age-dependent interaction potential landscapes. We verified that hub proteins tend to avoid other hub proteins, but essential proteins prefer to interact with other essential proteins. Overall, we showed that the interaction potential landscape is promising for inferring network profile change during aging and that the essential hub proteins may play an important role in the uncoupling between protein and transcript levels during replicative aging.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8010020PMC
http://dx.doi.org/10.1038/s41598-021-86415-8DOI Listing

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