Author

Ammon E. Posey

Washington University in St. LouisORCID 0000-0002-1445-6522Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Biophysics· 2 Biochemistry· 1

Signature Assays, Organisms & Methods

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Assay:proteomics· 3 Research Focus:cell signaling & trafficking· 2 Research Focus:chromatin & epigenetic regulation· 2 Approach:experimental assay· 2 Organism:bacteria (other)· 1 Approach:biophysical modeling· 1 Organism:human· 1 Assay:metagenomics· 1

Frequent Co-Authors

Rohit V. PappuiD· 3 shared Alex S. HolehouseiD· 1 shared Anne BremeriD· 1 shared Anuradha Mittal· 1 shared Avnika PantiD· 1 shared Bi ShiiD· 1 shared Francesco PalombaiD· 1 shared Hao JiangiD· 1 shared

Activity by Year

2018-2026 · peak 1/yr

Co-Author Collaboration Network

10 top collaborators · 21 mutual co-author links

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3 shared papersBiophysics

Rohit V. PappuORCID

Mutual co-authors in cluster

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3 papers

Recent·Most cited

Unleashed condensation by recurrent mutations of an epigenetic regulator promotes cancer

Yansu Song, Yi Hao, Maria Latacz, Marta Cykowiak, Julia Kirylczuk, Xuebo Quan, Francesco Palomba, Songwei Ni, Linjie Liu, Jing Hu, Bi Shi, Ammon E. Posey, Qiaoli Li, Haoran Yuan, Jie Sun, , Hao Jiang

This study shows that ASXL1 mutations promote cancer by unleashing phase separation, which enhances gene activation and leukemogenesis.

bioRxiv · Feb 20, 2026 · PreprintBiochemistry

Biomolecular condensates are characterized by interphase electric potentials

Ammon E. Posey, Anne Bremer, Nadia A. Erkamp, Avnika Pant, Tuomas P. J. Knowles, Yifan Dai, Tanja Mittag, Rohit V. Pappu

The paper shows that biomolecular condensates generate interphase electric potentials due to ion asymmetry, suggesting they function as mesoscale capacitors.

Journal of the American Chemical Society · Oct 2, 2024Peer-reviewedBiophysics

Evolved sequence features within the intrinsically disordered tail influence FtsZ assembly and bacterial cell division

Megan C. Cohan, Ammon E. Posey, Steven J. Grigsby, Anuradha Mittal, Alex S. Holehouse, Paul J. Buske, Petra A. Levin, Rohit V. Pappu

The paper investigates how the charge patterning and sequence complexity of the FtsZ C-terminal tail influence Z-ring formation and bacterial cell division.

bioRxiv · Apr 14, 2018 · PreprintBiophysics