Author

Gerald J. Barnes

Cornell UniversityORCID 0009-0000-9411-599XUnclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Signature Assays, Organisms & Methods

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Organism:bacteria (other)· 2 Approach:experimental assay· 2 Approach:biophysical modeling· 1 Research Focus:cell signaling & trafficking· 1 Research Focus:chromatin & epigenetic regulation· 1 Research Focus:metabolism & bioenergetics· 1 Research Focus:protein folding & dynamics· 1 Assay:proteomics· 1

Frequent Co-Authors

John D. HelmanniD· 2 shared Daniel ZhitnitskyiD· 1 shared Dia Zheng· 1 shared Oriana S. FisheriD· 1 shared Samuel J. Geathers· 1 shared Stephen C. PetersiD· 1 shared Veronika A. SzalaiiD· 1 shared Yuri Rafael de Oliveira SilvaiD· 1 shared

Activity by Year

2025-2026 · peak 1/yr

Co-Author Collaboration Network

8 top collaborators · 28 mutual co-author links

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2 shared papersMicrobiology

John D. HelmannORCID

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2 papers

Recent·Most cited

MicrobiologybioRxivPreprintSep 8, 2026

Physiological Roles of Carbonic Anhydrases and an MpsAB-like Bicarbonate Transporter in Bacillus subtilis

Gerald J. Barnes, John D. Helmann

This study shows that Bacillus subtilis requires bicarbonate for anabolic processes and that CO2 can be used as a substrate when endogenous CO2 production is increased.

DOI 10.64898/2026.09.08.750065

bacteria (other)experimental assay

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BiochemistryJournal of Biological ChemistryPeer-reviewedJul 15, 2025

Copper acquisition in Bacillus subtilis involves Cu(II) exchange between YcnI and YcnJ

Yuri Rafael de Oliveira Silva, Grayson Barnes, Dia Zheng…·Oriana S. Fisher

This study identifies a Cu(II) exchange mechanism between YcnI and YcnJ in B. subtilis, showing their roles in copper acquisition and regulation under copper limitation.

5 citations

bacteria (other)proteomics

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