Author

R. C. Clark

University of Illinois ChicagoORCID 0000-0002-5264-4604Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Microbiology· 2

Signature Assays, Organisms & Methods

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Approach:experimental assay· 2 Research Focus:host-pathogen & immune response· 2 Organism:bacteria (other)· 1 Assay:DNA methylation· 1 Research Focus:gene regulatory network inference· 1 Organism:mouse· 1 Assay:proteomics· 1 Approach:statistical model· 1

Frequent Co-Authors

Lauren D. PalmeriD· 2 shared Babette S. ZemeliD· 1 shared Connor R. TiffanyiD· 1 shared Dziedzom A. Bansah· 1 shared Elizabeth N. Varner· 1 shared Elliot S. FriedmaniD· 1 shared Gary D. WuiD· 1 shared John H. GearyiD· 1 shared

Activity by Year

2025-2026 · peak 1/yr

Co-Author Collaboration Network

10 top collaborators · 45 mutual co-author links

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2 shared papersMicrobiology

Lauren D. PalmerORCID

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2 papers

Recent·Most cited

A global post-transcriptional regulator directs Acinetobacter baumannii carbon preference and gut colonization

R. Mason Clark, Rosa L. Sava, Kia J.A. Holt, Michael J. Gebhardt, Lauren D Palmer

This study identifies CsrA as a global regulator of carbon preference and gut colonization in Acinetobacter baumannii, revealing its role in repressing arginine/ornithine catabolism and enhancing competitive fitness.

bioRxiv · Nov 10, 2026 · PreprintMicrobiology

Amino acid competition shapes Acinetobacter baumannii gut carriage

Xiaomei Ren, R. C. Clark, Dziedzom A. Bansah, Elizabeth N. Varner, Connor R. Tiffany, Kanchan Jaswal, John H. Geary, Olivia Adele Todd, Jonathan D. Winkelman, Elliot S. Friedman, Riley N Jarrett, Babette S. Zemel, Gary D. Wu, Joseph P. Zackular, William H. DePas, , Lauren D. Palmer

This study shows that A. baumannii uses ornithine to compete with gut microbiota and persist in mice, with dietary ornithine promoting its carriage.

Cell Host & Microbe · Aug 1, 2025Peer-reviewedMicrobiology