J.A. Jamsen

Federal Grant PI

Assistant Professor

Last publication 2025 Last refreshed 2026-05-22

faculty

jamsenjoonas@uams.edu

9 h-index 32 pubs 337 cited

Biography and Research Information

OverviewAI-generated summary

J.A. Jamsen's research focuses on the molecular mechanisms of DNA double-strand break repair, particularly the role of DNA polymerases in this process. Jamsen's group investigates how specific polymerases, such as Polλ, contribute to microhomology-mediated end-joining, a critical pathway for repairing DNA damage. Their work also examines the insertion of nucleotides, including oxidized and potentially pro-mutagenic variants, during DNA repair synthesis, aiming to understand the fidelity checkpoints that govern these events.

This research is supported by a $249,000 grant from the NIH/National Institute of Environmental Health Sciences for studying the molecular architecture of oxidative stress-induced double-strand break repair. Jamsen has published 32 papers, accumulating 334 citations and an h-index of 9. The group utilizes various biochemical and structural biology techniques to observe and characterize these complex molecular processes, contributing to a deeper understanding of DNA repair pathways and their implications for cellular health and disease.

Metrics

  • h-index: 9
  • Publications: 32
  • Citations: 337

Selected Publications

  • Observing DNA Polymerase Double Strand Break Synthesis (2025)
  • Author Correction: Polλ promotes microhomology-mediated end-joining (2023)
  • Polλ promotes microhomology-mediated end-joining (2022)
    25 citations DOI OpenAlex

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Federal Grants 1 $249,000 total

NIH/National Institute of Environmental Health Sciences Contact PI Mar 2023 - Feb 2027

Molecular Architecture of Oxidative Stress Induced Double Strand Break Repair

National Institute of Environmental Health Sciences $249,000 R00

Collaboration Network

16 Collaborators 8 Institutions 3 Countries

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