Samara Reck-Peterson is an American cell biologist and biophysicist renowned for her contributions to the study of intracellular transport mechanisms, particularly those involving the motor protein dynein. She holds the position of Professor of Cellular and Molecular Medicine and Cell and Developmental Biology at the University of California, San Diego (UC San Diego) and serves as an Investigator of the Howard Hughes Medical Institute (HHMI).
Early Life and Education
Born in 1971 in Seattle, Washington, Reck-Peterson attended Litchfield High School in Litchfield, Minnesota, where she graduated as salutatorian in 1989 and was active in athletics. She earned a Bachelor of Arts in Biology from Carleton College before pursuing graduate studies at Yale University. Under the mentorship of Mark Mooseker and Peter Novick, she completed a Ph.D. in Cell Biology, focusing on the functional, biochemical, and biophysical characterization of Myo2p, a class V myosin in the yeast Saccharomyces cerevisiae.
Postdoctoral Research
Following her doctorate, Reck-Peterson conducted post‑doctoral research in the laboratory of Ronald Vale at the University of California, San Francisco (UCSF). There she shifted her focus to dynein, a large cytoplasmic motor protein that transports diverse cargos along microtubules toward their minus ends. Her work employed single‑molecule techniques to elucidate dynein’s stepping behavior, revealing that isolated dynein can move forward, backward, and sideways—a distinct property compared with other cytoskeletal motors.
Academic Career
-
Harvard Medical School (2007–2015) – Reck-Peterson joined the Department of Cell Biology as an assistant professor, where she expanded investigations into dynein regulation and cargo selection. Notably, she employed DNA origami scaffolds to create programmable artificial cargos, enabling experimental “tug‑of‑war” studies between opposing motor proteins.
-
University of California, San Diego (2015–present) – In 2015 she moved to UC San Diego, where she leads the Reck‑Peterson Laboratory. The lab integrates biochemical reconstitution, protein engineering, single‑molecule imaging, proteomics, genomics, and live‑cell microscopy to explore how dynein and its regulators coordinate intracellular transport. Recent projects have examined the role of Lis1 as an initiation factor for dynein‑driven organelle movement and the mechanisms by which peroxisomes hitchhike on early endosomes via the linker protein PxdA.
-
Howard Hughes Medical Institute (2018–present) – Reck-Peterson was appointed an HHMI Investigator in 2018, providing long‑term support for her research program.
Research Contributions
- Dynein Recombinant Production – Developed one of the first systems to produce recombinant cytoplasmic dynein, facilitating detailed biochemical and structural studies.
- Stepping Mechanics – Demonstrated dynein’s capacity for variable step sizes and multidirectional movement, challenging earlier models of motor stepping.
- Cargo Regulation – Identified Lis1 as a critical factor that modulates dynein’s interaction with microtubules and initiates transport events.
- Motor Competition – Utilized DNA origami to construct artificial cargos that can bind multiple motor types, revealing principles of motor competition and coordination in intracellular transport.
Awards and Honors
- HHMI‑Simons Faculty Scholar
- Bjorkman‑Strominger‑Wiley Prize for Collaboration
- American Society for Cell Biology Women in Cell Biology (WICB) Junior Award for Excellence in Research
- Young Mentor Award, Harvard Medical School
- NIH Director’s New Innovator Award
Selected Publications
- Reck-Peterson, S. L., et al. (2006). “Single‑Molecule Analysis of Dynein Processivity and Stepping Behavior.” Cell, 126(2), 335–348.
- Reck-Peterson, S. L., et al. (2018). “The Cytoplasmic Dynein Transport Machinery and Its Many Cargoes.” Nature Reviews Molecular Cell Biology, 19(6), 382–398.
Professional Activities
Reck-Peterson serves on editorial boards of several journals in cell biology and biophysics and is a frequent speaker at international conferences on molecular motors and intracellular transport.
This entry summarizes publicly available information from reliable sources, including the subject’s Wikipedia article and institutional biographies.