Current Weiss Lab Members

Bob Weiss, PhD

Principal Investigator,

Bob is a Professor of Molecular Genetics in the Department of Biomedical Sciences and the Associate Dean for Research and Graduate Education in the College of Veterinary Medicine at Cornell University. He received an A.B. in Biology from Wabash College in 1992 and a Ph.D. in Molecular Virology from Baylor College of Medicine in 1997. He then trained as a postdoctoral fellow in the Department of Genetics at Harvard Medical School with support from an American Cancer Society postdoctoral fellowship. In 2002, Bob joined the faculty of Cornell University. He lectures in the core veterinary curriculum, teaches a graduate course on genome maintenance mechanisms, teaches a course for all students at Cornell on cancer patient and research engagement in the community, and leads a research program aimed at dissecting how mammalian cells maintain genomic stability, using mouse models and an array of genetic, molecular, cell biological, and genomic technologies.

Catalina Pereira

Graduate Student,
Catalina received her B.S. in Biology from Mount St. Mary’s University, in Los Angeles in 2013. In 2014 she began her graduate studies in the field of Biochemistry, Cellular, and Molecular Biology at Cornell University and joined the Weiss lab. In the lab, her research will focus on continuing to determine novel protein interactors with Hus1, examine regulation of HUS1 transcript isoforms, and study how specific mutations in key residues of HUS1 compromise the 9-1-1 complex.

Irma Fernandez

Graduate Student,
Irma graduated with her B.S. in Pharmaceutical Chemistry from UCSD in 2015. While applying to PhD programs, she worked as a Research Associate in the immunology department at Janssen Pharmaceuticals. She joined the Biochemistry, Molecular, and Cell Biology program at Cornell University in 2016 and decided to continue research in the Weiss Lab. Her research is focused on the studying the role of Sirtuin 5 in cancer metabolism.

Amanda Loehr

Graduate Student,
Amanda graduated with a B.S. in Biology from Gettysburg College in 2017 before coming to Cornell to pursue both a DVM and a PhD in Comparative Biomedical Sciences. Amanda’s research will investigate the molecular etiology and unique chemosensitivity of testicular germ cell tumors.

James Mullmann

Graduate Student,
James graduated with a B.A. in Biochemistry & Molecular Biology and Physics from Franklin & Marshall College in 2017 before entering the College of Veterinary Medicine at Cornell. James joined the Weiss and Cerione Labs as a joint-student after being accepted into the combined PhD-DVM program. His project is focused on the roles of SIRT1 and SIRT5 in breast cancer progression.

Matthew Guo

Research Technician,
Matthew joined the Weiss lab as an undergraduate student in the fall of 2016. He graduated from Cornell with a degree in Biological Sciences in December 2019 and has returned to work as a research technician before matriculating to medical school in the fall of 2020. Matthew has enjoyed researching in the Weiss lab because of the amazing people he gets to work with every day.

Michael Downey

Undergraduate Student,
Michael is a Chemistry and Chemical Biology major in the class of 2020. Originally from the California Bay Area, he joined the Weiss Lab in the Fall of 2017. He intends to continue to pursue his interests in research and medicine by pursuing an MD-PhD after graduation.

Ravi Dhawan

Undergradute Student,
Ravi is a Biological Sciences major from Manlius, NY, who is concentrating in Physiology and minoring in History. Part of the class of 2021, Ravi joined the lab in the fall of 2018 and has enjoyed assisting in research. Ravi is interested in orthopedic-geriatric medicine, and the ways in which hospitals can prevent diseases in older adults. After graduation, Ravi plans on pursuing an MD program.