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Stefan Tafrov

Research Interests

Understanding the molecular organization of the chromatin and the changes in it during replication, transcription, silencing, repair etc. Development of models for examining the effects of the radiation over human skin cells. Molecular biology of the yeast Saccharamyces.

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Selected Publications

  • Sampath V., Liu B., Tafrov S., Srinivasan M., Rieger R., Chen E.I., and Sternglanz R.
    Biochemical characterization of Hpa2 and Hpa3-two small closely related acetyltransferases from S. cerevisiae.
    J. Biol. Chem., [Epub ahead of print] (2013 Jun 17). PubMed
  • Lebel E.A., Rusek A., Sivertz M.B., Yip K., Thompson K.H., and Tafrov S.T.
    Analyses of the secondary particle radiation and the DNA damage it causes to human keratinocytes.
    J. Radiat. Res. (Tokyo), 52(6):685-693 (2011).   PubMed
  • Lebel E.A., Boukamp P., and Tafrov S.T.
    Irradiation with heavy-ion particles changes the cellular distribution of human histone acetyltransferase HAT1.
    Mol. Cell Biochem., 339(1-2):271-284 (2010).   PubMed
  • Bennett P.V., Cuomo N.L., Paul S., Tafrov S.T., and Sutherland B.M.
    Endogenous DNA damage clusters in human skin, 3-D model, and cultured skin cells.
    Free Radical Biol. Med., 39(6):832-839 (2005).  PubMed
  • Poveda A., Pamblanco M., Tafrov S., Tordera V., Sternglanz R. and Sendra R.
    Hif1 is a component of yeast histone acetyltransferase B, a complex mainly localizedin the nucleus.
    J. Biol. Chem., 279(16):16033-16043 (2004).  PubMed
  • John S., Howe L., Tafrov S.T., Grant P.A., Sternglanz R. and Workman J.L.
    The something about silencing protein, Sas3, is the catalytic subunit of NuA3, a yTAF(II)30-containing HAT complex that interacts with the Spt16 subunit of the yeast CP (Cdc68/Pob3)-FACT complex.
    Genes Dev., 14(10):1196-1208 (2000). PubMed
  • Landry J., Sutton A., Tafrov S.T., Heller R.C., Stebbins J., Pillus L. and Sternglanz R.
    The silencing protein SIR2 and its homologs are NAD-dependent protein deacetylases.
    Proc. Natl. Acad. Sci. USA, 97(11):5807-5811 (2000).  PubMed
  • Angus-Hill M.L., Dutnall R.N., Tafrov S.T., Sternglanz R. and Ramakrishnan V.
    Crystal structure of the histone acetyltransferase Hpa2: A tetrameric member of the Gcn5-related N-acetyltransferase superfamily.
    J. Mol. Biol., 294(5):1311-1325 (1999). PubMed
  • Dutnall R.N., Tafrov S.T., Sternglanz R. and Ramakrishnan V.
    Structure of the yeast histone acetyltransferase Hat1: Insights into substrate specificity and implications for the Gcn5-related N-acetyltransferase superfamily.
    Cold Spring Harbor Symp. Quant. Biol., 63:501-507, Review (1998). PubMed
  • Dutnal R.N., Tafrov S.T., Sternglanz R., Ramakrishnan V.
    Structure of the histone acetyltransferase Hat1: A paradigm for the GCN5-related N-acetyltransferase superfamily.
    Cell, 94(4):427-438 (1998). PubMed
  • Tafrov S., Chakarov S. and Venkov P.
    Localization of EEN1 gene on chromosome II of the yeast Saccharomyces cerevisiae.
    Proc. Bulgarian Acad. Sci., 46:121-123 (1993).
  • Tafrov S. and Venkov P.
    Saccharomyces cerevisiae mutants sensitive to sodium dodecyl sulphate.
    Proc. Bulgarian Acad. Sci., 45:119-121 (1992).