Abstract
We examined whether transcription elongation factors control constitutive transcription of the histone H1(0) and GAPDH genes. Chromatin immunoprecipitation demonstrated positive transcription elongation factor b (P-TEFb) and 5,6-dichloro-1-beta-D-ribofuranosylbenzimidazole (DRB) sensitivity-inducing factor (DSIF) present together with RNA polymerase II (pol II) throughout the histone H1(0) gene, whereas negative elongation factor (NELF) was confined to the 5' region. Contrarily, DSIF, NELF and pol II were confined to the 5' region on the GAPDH. Inhibition of those factors affected the constitutive transcription of the histone H1(0) gene but not the GAPDH gene. Thus, NELF, DSIF and P-TEFb control constitutive transcription in a gene-specific manner.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Cell Line, Tumor
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Gene Expression Regulation*
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Glyceraldehyde-3-Phosphate Dehydrogenases / genetics
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Glyceraldehyde-3-Phosphate Dehydrogenases / metabolism
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Histones / genetics
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Histones / metabolism
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Nuclear Proteins / genetics
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Nuclear Proteins / metabolism*
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Positive Transcriptional Elongation Factor B / genetics
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Positive Transcriptional Elongation Factor B / metabolism*
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RNA Polymerase II / metabolism
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Rats
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Transcription Factors / genetics
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Transcription Factors / metabolism*
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Transcription, Genetic*
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Transcriptional Elongation Factors / genetics
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Transcriptional Elongation Factors / metabolism*
Substances
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Histones
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Nuclear Proteins
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Transcription Factors
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Transcriptional Elongation Factors
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negative elongation factor
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Glyceraldehyde-3-Phosphate Dehydrogenases
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Positive Transcriptional Elongation Factor B
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RNA Polymerase II