Andrew Tudor Atanasiu

Mr. Andrew Tudor Atanasiu

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Research Focus & Metrics

Academic Career Length

2Years (2025-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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AAAndrew Tudor Atanasiu
Andrew Tudor Atanasiu
CHCaitlin Hult
Caitlin Hult
DKDaniel Kolbin
Daniel Kolbin
BWBenjamin L. Walker
Benjamin L. Walker
GFGreg Forest
Greg Forest
KBKerry Bloom
Kerry Bloom
Homology search is a means through which DNA double-strand breaks (DSBs) explore the genome for sequences that enable error-free repair, known as homologous recombination. A better understanding of this search process is fundamental to the relationship between higher-order chromosome organization and DNA damage. Here, we use an entropic bead-spring polymer chain model to simulate the spatiotemporal dynamics of the yeast genome during interphase. The chromosome is organized by transient and dynamic cross-links representing structural maintenance of chromosome (SMC) complexes. DNA damage is modeled as a break in the bead-spring chain, coupled with a removal of crosslinks from beads proximal to the break site. We show that the removal of cross-links drives the exploration of genomic space by the damaged ends, while rates and densities of intact dynamic crosslinking have only a minor role. Local depletion of SMC cross-links proximal to the break site enables the damaged segment to escape the chromosome territory and enhances its ability to explore the genome. Our study reveals a foundational principle by which DSBs can encounter distant regions of sequence homology.