Award

Telomerase studies led Collins to discoveries in genetic elements

She has won the 2022 Earl and Thressa Stadtman Distinguished Scientist Award
Nicole Lynn
Dec. 21, 2021

Almost half the human genome owes its origin to retroelements — components of the eukaryotic genome capable of mobilizing via an RNA intermediate to other portions of genetic DNA, where they can be inserted.

Kathleen Collins

After two and a half decades of research on telomerase, the enzyme responsible for maintaining telomeric DNA integrity during replication, Kathleen Collins at the University of California, Berkeley, expanded her research to focus on genetic retroelements in eukaryotes. Collins’ journey into this largely unexplored field began about five years ago, after she and her colleagues reached long-sought insights in their telomerase research.

“Our time studying telomerase provided us expertise, for example, a better understanding of protein–RNA interactions,” Collins said, “and we wanted to know if we can answer questions about retroelements using our knowledge of telomerase.”

For her contributions to telomerase and the RNA field, Collins will receive the American Society for Biochemistry and Molecular Biology’s 2022 Earl and Thressa Stadtman Distinguished Scientist Award, which recognizes outstanding achievements in basic research.

Collins comes from a family of academics; however, her interest in biology emerged from a love of science, technology, engineering and math as well as learning and the pursuit of truth. As a researcher and educator, Collins encourages her students to place themselves continuously in the way of information — for example, at conferences and office hours or with experts and peers — because a person never knows where their best lessons will come from.

“The number of insights I have had in my work that came from lecturing or preparing to teach, are huge,” she said. “It’s why I believe teaching and research go so well together.”

As a mentor, Collins enjoys sharing advice; she motivates her students to put themselves out there with regard to science, reminding them that they needn’t be shy or worry about imposing as long as they are respectful. One motto she shares with students: “No question is too stupid, except one that goes unasked.”

Investigating retroelements in the eukaryotic genome

In the context of evolution, retroelements can be described as opportunistic genetic elements that carry themselves as passengers in the genomes of their hosts. As humans evolved, these elements were silenced to maintain the integrity of our genome; however, a large number still exist in our DNA.

After many years investigating the enzyme telomerase, including its specific mechanisms on the chromosome, Kathleen Collins and her lab noticed its connection to retroelements.

“It’s crucial to think of telomerase as a ribonucleoprotein because it is a co-folding protein and RNA mixture,” Collins said. “Telomerase is the non-selfish version compared to what we see with eukaryotic retroelements.”

Collins’ lab is paving the way in eukaryotic retroelement research, focusing in particular on non–long terminal repeat retroelement reverse transcriptases and their ribonucleoprotein complexes. Collins hopes to harness the targeting specificity observed in these enzymes for future use in gene therapy.

In addition to her funding sources, Collins attributes her research success to her lab members and to the Berkeley innovation and entrepreneurship ecosystem.

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Nicole Lynn

Nicole Lynn is a Ph.D. candidate at UCLA and a volunteer writer for ASBMB Today.

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