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Article
Repressor elements in the coding region of the human histone H4 gene interact with the transcription factor CDP/cut
Gene (1998)
  • Thomas J Last, Philadelphia College of Osteopathic Medicine
  • Mark J. Birnbaum, University of Massachusetts Medical School
  • Andre J. Van Wijnen, University of Massachusetts Medical School
  • Gary S Stein
  • Janet L. Stein, University of Massachusetts Medical School
Abstract
The coding region of the human histone H4 gene FO108 undergoes dynamic changes in chromatin structure that correlate with modifications in gene expression. Such structural alterations generally reflect transcription factor interactions with gene regulatory sequences. To test for regulatory elements within the coding region, we performed transient transfection experiments in HeLa cells using constructs with histone H4 sequences fused upstream of a heterologous thymidine kinase promoter and CAT reporter gene. H4 gene sequences from −10 to +210 repressed transcription 4.8-fold. Further deletion and mutational analysis delineated three repressor elements within this region. Using oligonucleotide competition analysis and specific antibody recognition in electrophoretic mobility shift assays, as well as methylation interference and DNase I footprinting analyses, we have identified the CCAAT displacement protein (CDP/cut) as the factor that interacts with these three repressor elements. CDP/cut binding to these repressor sites is proliferation-specific and cell-cycle-regulated, increasing in mid to late S phase. Our results indicate that the proximal 200 nucleotides of the histone H4-coding region contain transcriptional regulatory elements that may contribute to cell-cycle control of histone gene expression by interacting with repressor complexes containing CDP/cut homeodomain transcription factors.
Keywords
  • Transcription,
  • Homeodomain,
  • Proliferation,
  • Growth Control
Publication Date
October, 1998
DOI
https://doi.org/10.1016/S0378-1119(98)00415-6
Citation Information
Thomas J Last, Mark J. Birnbaum, Andre J. Van Wijnen, Gary S Stein, et al.. "Repressor elements in the coding region of the human histone H4 gene interact with the transcription factor CDP/cut" Gene Vol. 221 Iss. 2 (1998) p. 267 - 277
Available at: http://works.bepress.com/thomas-last/3/