Author

Alina M. Vrabioiu

Harvard UniversityORCID 0009-0000-5829-2470Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Organism:E. coli· 2 Research Focus:cell signaling & trafficking· 1 Research Focus:cell type annotation· 1 Assay:fluorescence / live-cell microscopy· 1 Approach:microscopy & imaging analysis· 1 Approach:optimal transport· 1 Assay:proteomics· 1

Frequent Co-Authors

Aravinthan D. T. SamueliD· 2 shared Basarab Gabriel HosuiD· 2 shared

Activity by Year

2025-2026 · peak 1/yr

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2 top collaborators · 1 mutual co-author link

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2 shared papersBiophysics

Aravinthan D. T. SamuelORCID

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2 papers

Recent·Most cited

BiophysicsProceedings of the National Academy of SciencesPeer-reviewedMar 3, 2026

The dynamic response of the bacterial flagellar motor to its direct intracellular input signal

Alina M. Vrabioiu, Basarab Gabriel Hosu, Aravinthan D. T. Samuel

This paper demonstrates that activation of 1-3 CheY-P molecules is sufficient to switch the bacterial flagellar motor from CCW to CW, resolving a long-standing paradox about chemotactic sensitivity.

1 citation

E. coliproteomics

𝕏 PostBluesky

MicrobiologyProceedings of the National Academy of SciencesPeer-reviewedDec 3, 2025

Torque-generating units of the bacterial flagellar motor are rotary motors

Basarab Gabriel Hosu, Alina M. Vrabioiu, Aravinthan D. T. Samuel

The paper demonstrates that bacterial flagellar motor stator units are rotary motors, with MotA pentamers rotating faster than the rotor, revealing a gear-like mechanism.

1 citation

E. colifluorescence / live-cell microscopy

𝕏 PostBluesky