David N. Frick

David N. Frick

Associate Professor

Office: Chemistry 333
Phone: 414-229-6670
e-mail: frickd@uwm.edu
Website: http://uwm.edu/~frickd


Ph.D., The Johns Hopkins University

Research Description:

My lab mainly studies the biochemistry of viral proteins and small molecules that interact with them. Our main interest, presently, is in targeting a helicase encoded by the hepatitis C virus (HCV). Helicases are motor proteins that separate DNA and RNA duplexes and dislodge proteins bound to nucleic acids in reactions fueled by ATP hydrolysis. We also study other helicases from related viruses and human cells, and other viral proteins such as polymerases, proteases and capsid proteins. The goal of most projects in the lab is either to understand how these proteins help copy viral genomes or to understand how small molecule drugs block virus growth by directly interfering with these important enzymes.

Molecular model of a fluorescent NS3 helicase inhibitor
A molecular model of a fluorescent NS3 helicase inhibitor bound to the protein overlaid on a picture of human cells infected with HCV. The human cells also contain the helicase inhibitor, which is visualized in the cytoplasm using fluorescence microscopy.

Techniques used in our lab:

  • Recombinant DNA technology
  • Protein purification
  • Enzymology
  • Steady state and transient state kinetics
  • Tissue Culture
  • Fluorescence Microscopy
  • Quantitative RT-PCR
  • High throughput screening
  • Absorbance spectroscopy
  • Fluorescence spectroscopy
  • TR-FRET, alpha-screen and FP assays
  • Biocalorimetry
  • Molecular Modeling

For more information, see our Lab Website, or this UWM News article on our research.

Selected Publications:

Shadrick, William R., Ndjomou, Jean, Mukherjee, Sourav, Hanson, Alicia M., and Frick, David N.“Discovering New Medicines Targeting Helicases: Challenges and Recent Progress.” J Biomol Screen (2013) .
Mastrangelo, Eloise, Pezzullo, Margherita, De Burghgraeve, Tine, Kaptein, Suzanne, Pastorino, Boris, Dallmeier, Kai, de Lamballerie, Xavier, Neyts, Johan, Hanson, Alicia M., Frick, David N., Bolognesi, Martino, and Milani, Mario. “Ivermectin is a potent inhibitor of flavivirus replication specifically targeting NS3 helicase activity: new prospects for an old drug.” Journal of Antimicrobial Chemotherapy 67. (2012): 1884-1894.
Li, Kevin, Frankowski, Kevin J., Belon, Craig A., Neuenswander, Ben, Ndjomou, Jean, Hanson, Hanson M., Shanahan, Matthew A., Schoenen, Frank J., Blagg, Brian S., Aube, Jeff, and Frick, David N.“Optimization of Potent Hepatitis C Virus NS3 Helicase Inhibitors Isolated from the Yellow Dyes Thioflavine S and Primuline.” J. Med. Chem. 55. (2012): 3319-3330.
Ndjomou, Jean, Kolli, Rajesh, Mukherjee, Sourav, Shadrick, William R., Hanson, Alicia M., Sweeney, Noreena, Bartczak, Diana, Lin, Kelin, Frankowski, Kevin J., Schoenen, Frank J., and Frick, David N.“Fluorescent primuline derivatives inhibit hepatitis C virus NS3-catalyzed RNA unwinding, peptide hydrolysis and viral replicase formation.” Antiviral Research 96. (2012): 245-255.
Hanson, Alicia M., Hernandez, John J., Shadrick, William R., and Frick, David N.“Identification and Analysis of Inhibitors Targeting the Hepatitis C Virus NS3 Helicase.” Methods in Enzymology 511. (2012): 463-483.
Mukherjee, Sourav, Hanson, Alicia M., Shadrick, William R., Ndjomou, Jean, Sweeney, Noreena L., Herandez, John J., Bartczak, Diana, Li, Kevin, Frankowski, Kevin J., Heck, Julie A., Arnold, Alexander E., Schoenen, Frank J., and Frick, David N.“Identification and analysis of hepatitis C virus NS3 helicase inhibitors using nucleic acid binding assays.” Nucleic Acid Research 40.17 (2012): 8607-8621.
Mousseau, G S., Takahashi, V, Frick, David N., and Strosberg, A D.“Dimerization-driven interaction of hepatitis C virus core protein with NS3 helicase.” Journal of General Virology 92. (2011): 101-111.
Peng, Lee F., Schaefer, Esperance A., Maloof, Nicole, Skaff, ANdrew, Berical, Andrew, Belon, Craig A., Heck, Julie A., Lin, Wenyu, Frick, David N., Allen, Todd M., Mizorko, Henry M., Schreiber, Stuart L., and Chung, Raymond T.“Ceestatin, a novel small molecule inhibitor of hepatitis C virus replication, inhibits 3-hydroxy-3-methylglutaryl-coenzyme A synthase.” J Infect Dis. 204.4 (2011): 609-616.
Lam, Angela M., Murakami, Eisuke, Espiritu, Christine, Micolochick Steuer, Holly M., Nui, Congrong, Keilman, Meg, Bao, Haiying, Zennou, Veronique, Bourne, Nigel, Julander,3, Justin G., Morrey, John D., Smee, Donald F., Frick, David N., Heck, Julie A., Wang, Peiyuan, Nagarathnam, Dhanapalan, Ross, Bruce S., Sofia, Michael J., Otto, Michael J., and Furman, Philip A.“PSI-7851, a Pronucleotide of beta-D-2'-Deoxy-2'-Fluoro-2'-C-Methyluridine Monophosphate, Is a Potent and Pan-Genotype Inhibitor of Hepatitis C Virus Replication.” Antimicrob. Agents Chemother. 54.8 (2010): 3187 - 3196.