
We study transcription of human small nuclear (sn) RNA genes as a model
system to understand mechanisms of transcription and regulation of gene
expression. Correctly regulated gene expression is important for healthy
development and the maintenance of cellular homeostasis.
Disruptions in
transcriptional regulation are observed in many disease states
including cancer. Moreover, viruses subvert the cellular
transcriptional programs for their own benefit during viral
infection.
Therefore, it is important to understand the
transcriptional mechanisms that underlie control of gene expression.
Human snRNA genes encode short stable RNAs that as part of
specialized protein-snRNA complexes typically are involved in
processing other RNA molecules.
For example, snRNAs are essential for
mRNA splicing, rRNA processing, and tRNA processing. MORE
Ullah, Z., M.S. Buckley, D.N. Arnosti, and R.W. Henry. (2007). Retinoblastoma protein regulation by the COP9 signalosome. Mol Biol Cell 18: 1179-86. Abstract
Gridasova, A.A., and Henry, R.W. (2005). The p53 tumor suppressor protein represses human snRNA gene transcription by RNA polymerases II and III independently of sequence specific DNA binding. Mol Cell Biol. 2005 Apr;25(8):3247-60 Acrobat pdf.
Keller, S.A., Ullah, Z., Buckley, M., Henry, R.W., and Arnosti, D.N. (2005). Distinct developmental expression of Retinoblastoma factors in Drosophila. Gene Expression Patterns, 5:411-421. Acrobat pdf.
Hirsch, H.A., Jawdekar, G.W., Lee, K.A., Gu, L., and Henry, R.W. (2004). Distinct mechanisms for repression of RNA polymerase III transcription by the Retinoblastoma tumor suppressor protein. Molecular & Cellular Biology, 24:2989-5999. Acrobat pdf.
Hirsch, H.A., Gu, L., and R. W. Henry (2000). The Retinoblastoma tumor suppressor protein targets distinct core-promoter complexes to regulate RNA polymerase III gene expression. Molecular & Cellular Biology, 20:9182-9191. Acrobat pdf.
Jawdekar, G.W. and R.W. Henry. (2008). Transcriptional regulation of human small nuclear RNA genes. Biochim Biophys Acta. 1779:295-305 Abstract
Jawdekar GW, Hanzlowsky A, Hovde SL, Jelencic B, Feig M, Geiger JH, Henry RW. (2006). The unorthodox SNAP50 zinc finger domain contributes to cooperative promoter recognition by human SNAPc. J Biol Chem. 281(41):31050-60. Acrobat pdf.
Hanzlowsky A, Jelencic B, Jawdekar GW, Hinkley CS, Geiger JH, Henry RW. (2006). Co-expression of multiple subunits enables recombinant SNAPC assembly and function for transcription by human RNA polymerases II and III. Protein Expr Purif. 48(2):215-23. Acrobat pdf.
Gu L, Esselman WJ, Henry RW. (2005). Cooperation between small nuclear RNA-activating protein complex (SNAPc) and TATA-box-binding protein antagonizes Protein Kinase CK2 Inhibition of DNA Binding by SNAPc. Journal of Biological Chemistry. 280:27697-704. Acrobat pdf.
Hinkley, C. S., Hirsch, H. A., Gu, L., LaMere, B., and Henry, R.W. (2003). The SNAP190 Myb DNA-binding domain regulates TBP-TATA recognition. Journal of Biological Chemistry, 278:18649-18657. Acrobat pdf.
Hovde, S., Hinkley, C. S., Strong, K., Brooks, A., Gu, L., Henry, R. W., and J. Geiger (2002). Activator recruitment by the general transcription machinery: X-ray structural analysis of the Oct-1 POU domain/human U1 octamer/SNAP190 peptide ternary complex. Genes & Development, 16:2772-2777. Acrobat pdf.
Chen, D., Hinkley, C. S., Henry, R. W., and S. Huang (2002). TBP dynamics in living human cells: constitutive association of TBP with mitotic chromosomes. Molecular Biology of the Cell, 13:276-284. Acrobat pdf.
Henry, R.W., Mittal, V., Ma, B., Kobayashi, R., and N. Hernandez (1998). Assembly of a functional, core promoter complex (SNAPc) shared by RNA polymerase II and III. Genes & Development, 12:2664-2672. Acrobat pdf. MORE