Positions

Overview

  • I am a biophysical chemist who combines single-molecule techniques with traditional physical chemistry and biochemistry to study nucleic acid structure, DNA damage, and gene regulation. My group combines single-molecule FRET with biochemistry and thermodynamics to reveal unique insights into nucleic acids (DNA and RNA) structural dynamics and its role in protein-nucleic acid interaction.
  • Research Overview

  • Nucleic acids (DNA and RNA) can form a variety of non-canonical secondary structures. Many studies show that non-canonical secondary structures can fold or unfold during gene expression and play important roles in gene regulation. However, the dynamics of these processes are not well-studied. If a non-canonical secondary structure forms, how stable is it? When does it form and how long will it stay folded? Does base modification or damage change the conformational dynamics? Answers to these questions will explain how a particular sequence can act as a promoter, cap, or binding site, which is vital for understanding stress response, cancer development, aging, and viral gene replication.
    Although traditional physical or biochemical methods allow us to detect stable formation of secondary and tertiary structures, substantially less information is available about the dynamics of these structures. Single-molecule Förster resonance energy transfer (smFRET) allows us to study the structural dynamics of nucleic acids and bio-macromolecule interactions in real-time. Similarly, super-resolution imaging allows us to quantitatively monitor the expression and distribution of mRNA and protein in the cell. I use these techniques to test if DNA and RNA conformational dynamics contribute to telomere loop (T-loop) formation, telomerase promoter function, and viral mRNA 3’ untranslated region (3’UTR) function. My work will improve our knowledge about how DNA and RNA binding proteins respond to the dynamics of non-canonical secondary structures, and help to explain how base modification and damage affect aging, cancer, and other diseases.
  • Principal Investigator On

    Education And Training

  • Johns Hopkins University Biophysics, Postdoctoral Research
  • Johns Hopkins University Biophysics, Postdoctoral Research
  • University of Illinois at Urbana Champaign Bioengineering, Postdoctoral Research
  • Doctor of Philosophy in Pharmacy, Pharmaceutical Sciences, and Administration, University of Nebraska Medical Center 2010
  • Bachelor of Science or Mathematics in Biology, National Dong Hwa University 2003
  • Full Name

  • Hui-Ting Lee