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Gregory Hunter, Ph.D.
Research Assistant Professor, Department of Biochemistry and Molecular Biology, College of Medicine


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Email: ghunter@health.usf.edu
Phone: (813) 974-6176
Office: MDC, 2160
Mailing address 12901 Bruce B. Downs Blvd. MDC 7
Tampa, FL 33612
  • PHD, Philosophy in Medical Sciences, University Of South Florida, Tampa, United States - 1999.
  • B.A. and M.A., Chemistry, University of South Florida, USA - 1993.
    Interdisciplinary & Emerging Signature Programs
    Research Summary

    My research interests encompass all aspects of biomolecular recognition processes, including but not limited to enzymology, conformational dynamics, and protein-protein interactions. Available structural, chemical, and kinetic information are used as a rationale basis for designing experimental approaches to answer key questions regarding the way in which enzymes work, and how they might be modified or targeted for beneficial therapeutic or industrial applications. We utilize an extensive variety of molecular biological and spectroscopic tools, and collaborate freely with many other researchers located all over the world.


    Selected Publications
  • Hunter GA, Sampson MP, Ferreira GC. Metal ion substrate inhibition of ferrochelatase. The Journal of biological chemistry. 283(35) : 23685-91, 2008.
  • Hunter GA, Zhang J, Ferreira GC. Transient kinetic studies support refinements to the chemical and kinetic mechanisms of aminolevulinate synthase. The Journal of biological chemistry. 282(32) : 23025-35, 2007.
  • Turbeville TD, Zhang J, Hunter GA, Ferreira GC. Histidine 282 in 5-aminolevulinate synthase affects substrate binding and catalysis. Biochemistry. 46(20) : 5972-81, 2007.
  • Hunter GA, Rivera E, Ferreira GC. Supraphysiological concentrations of 5-aminolevulinic acid dimerize in solution to produce superoxide radical anions via a protonated dihydropyrazine intermediate. Archives of biochemistry and biophysics. 437(2) : 128-37, 2005.
  • Hunter GA, Ferreira GC. Pre-steady-state reaction of 5-aminolevulinate synthase. Evidence for a rate-determining product release. The Journal of biological chemistry. 274(18) : 12222-8, 1999.
  • Hunter GA, Ferreira GC. Lysine-313 of 5-aminolevulinate synthase acts as a general base during formation of the quinonoid reaction intermediates. Biochemistry. 38(12) : 3711-8, 1999.
  • Gong J, Hunter GA, Ferreira GC. Aspartate-279 in aminolevulinate synthase affects enzyme catalysis through enhancing the function of the pyridoxal 5'-phosphate cofactor. Biochemistry. 37(10) : 3509-17, 1998.
  • Tan D, Harrison T, Hunter GA, Ferreira GC. Role of arginine 439 in substrate binding of 5-aminolevulinate synthase. Biochemistry. 37(6) : 1478-84, 1998.
  • Ferreira GC, Vajapey U, Hafez O, Hunter GA, Barber MJ. Aminolevulinate synthase: lysine 313 is not essential for binding the pyridoxal phosphate cofactor but is essential for catalysis. Protein science : a publication of the Protein Society. 4(5) : 1001-6, 1995.
  • Hunter GA, Ferreira GC. A continuous spectrophotometric assay for 5-aminolevulinate synthase that utilizes substrate cycling. Analytical biochemistry. 226(2) : 221-4, 1995.

  • Positions Held
  • Principal Scientist ( , Smith and Nephew Medical Inc. 2002 - 2004)
  • Postdoctoral Research Fellow (Mote Marine Laboratory, Massachusetts Institute of Technology 1999 - 2002)
  • Graduate Student (Department of Biochemistry and Molecular Biology, College of Medicine, University of South Florida 1994 - 1999)
  • Research and Development Chemist ( , Bausch and Lomb Pharmaceuticals 1993 - 1994)
  • Graduate Student & Teaching Assistant (Department of Chemistry, University of South Florida 1990 - 1993)

  • Profile last modified on 03/26/2012