Research Interests:

I am interested in the structure and function of nucleic acids and the proteins that bind to and act on them. In the Opresko lab, my research focuses on nucleic acid structures that form within the telomere and how they influence interactions with telomerase. I am also part of a collaboration that aims to understand the structure and function of human telomerase.








B.S. in Chemistry with a Specialization in Biochemistry; University of Virginia (Charlottesville, VA), May 2017

PhD Advisor:  Dr. Patricia Opresko

Lab Address: 
Hillman Cancer Center,
Research Pavilion Lab 2.1,
5117 Centre Ave. Pittsburgh, PA 15213

email: saj98 [at]


  • Morgan RD, Luyten YA, Johnson SA, Clough EM, Clark TA, Roberts RJ. Novel m4C modification in type I restriction-modification systems. Nucleic Acids Res. 2016 Nov 2; 44(19): 9413-9425
  • Schaich MA, Sanford SL, Welfer GA, Johnson SA, Khoang TH, Opresko PL, & Freudenthal BD. (2020) Mechanisms of nucleotide selection by telomerase. eLife, 9:e55438. DOI: 10.7554/eLife.55438. [PubMed: 32501800]