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Alessandra Beelen

Alessandra Beelen

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Education: B.S. in Biochemistry and Molecular Biology, University of California-Davis, 2022

From: Hangzhou, China

Joined David Lab: June 2022

Outside of lab: I enjoy watching sports, such as F1 and basketball, and travelling!

Research in the lab: Although much of the research in the David lab focuses on MUTYH and its ability to recognize and repair OG:A mismatches, we are also curious in its role beyond identifying such lesions. MUTYH has shown to mediate cytotoxicity with various chemotherapeutics and UV light. These MUTYH-dependent sensitivities in the cell may also vary depending on the mutant variants of MUTYH. My project involves using both in vitro and cell-based assays to better understand the molecular basis behind this process.

Previous Research Experience: During my time at Davis, I worked in the Niño Lab studying honey bees. I was involved in three different projects involving a mixture of lab and field work. The main goals of these projects were to see if we could increase honey bee health and longevity to better support beekeeper’s needs or determine bee stocks that are more suitable in California’s Central Valley Mediterranean climate. I also joined the David Lab and worked with Melody on synthesizing transition state that are incorporated in oligonucleotides to serve as inhibitors of base excision repair glycosylases.

RSS Science Daily News

  • Scientists reveal your morning coffee flips an ancient longevity switch June 26, 2025
    Caffeine appears to do more than perk you up—it activates AMPK, a key cellular fuel sensor that helps cells cope with stress and energy shortages. This could explain why coffee is linked to better health and longer life.
  • Mammals didn't walk upright until late—here's what fossils reveal June 25, 2025
    The shift from lizard-like sprawl to upright walking in mammals wasn’t a smooth climb up the evolutionary ladder. Instead, it was a messy saga full of unexpected detours. Using new bone-mapping tech, researchers discovered that early mammal ancestors explored wildly different postures before modern upright walking finally emerged—much later than once believed.
  • The brain’s sweet spot: How criticality could unlock learning, memory—and prevent Alzheimer’s June 25, 2025
    Our brains may work best when teetering on the edge of chaos. A new theory suggests that criticality a sweet spot between order and randomness is the secret to learning, memory, and adaptability. When brains drift from this state, diseases like Alzheimer s can take hold. Detecting and restoring criticality could transform diagnosis and treatment.
  • Scientists reprogram ant behavior using brain molecules June 25, 2025
    Leafcutter ants live in highly organized colonies where every ant has a job, and now researchers can flip those jobs like a switch. By manipulating just two neuropeptides, scientists can turn defenders into nurses or gardeners into leaf harvesters. These same molecular signals echo in naked mole-rats, revealing a deep evolutionary link in how complex […]
  • Mojave lichen defies death rays—could life thrive on distant exoplanets? June 25, 2025
    Lichen from the Mojave Desert has stunned scientists by surviving months of lethal UVC radiation, suggesting life could exist on distant planets orbiting volatile stars. The secret? A microscopic “sunscreen” layer that protects their vital cells—even though Earth’s atmosphere already filters out such rays.

Contact:

Dr. Sheila S. David
ssdavid@ucdavis.edu
(530)-752-4280

Department of Chemistry
One Shields Ave.
Davis, CA 95616