Cloning and characterization of p52, the fifth subunit of the core of transcription/repair factor TFIIH.
TFIIH is a multiprotein factor involved in transcription and DNA repair and is implicated in DNA repair/transcription deficiency disorders such as xeroderma pigmentosum, Cockayne syndrome and trichothiodystrophy. Eight out of the nine genes encoding the subunits forming TFIIH have already been cloned. We report here the identification, cDNA cloning and gene structure of the 52 kDa polypeptide and its homology with the yeast counterpart TFB2. This protein, along with p89/XPB, p62, p44 and p34, forms the core of TFIIH. Moreover, using in vitro reconstituted transcription and nucleotide excision repair (NER) assays and microinjection experiments, we demonstrate that p52 is directly involved in both transcription and DNA repair mechanisms in vitro and in vivo.
|Keywords||*DNA Repair, *Transcription Factors, TFII, 0 (Antibodies, Monoclonal), 0 (Fungal Proteins), 0 (Taf6 protein, Drosophila), 0 (Transcription Factors), 0 (Transcription Factors, TFII), 148710-81-0 (transcription factor TFIIH), Amino Acid Sequence, Antibodies, Monoclonal/immunology/pharmacology, Blotting, Western, Chromosome Mapping, Chromosomes, Human, Pair 6, Cloning, Molecular, Electrophoresis, Polyacrylamide Gel, Fungal Proteins/chemistry, Human, In Situ Hybridization, Fluorescence, Microinjections, Molecular Sequence Data, Saccharomyces cerevisiae/chemistry, Sequence Alignment, Sequence Analysis, Support, Non-U.S. Gov't, Transcription Factors/*chemistry/genetics/isolation & purification/metabolism, Transcription, Genetic|
Marinoni, J.C., Roy, R., Vermeulen, W., Miniou, P., Lutz, Y., Weeda, G., … Egly, J-M.. (1997). Cloning and characterization of p52, the fifth subunit of the core of transcription/repair factor TFIIH.. EMBO Journal, 16, 1093–1102. Retrieved from http://hdl.handle.net/1765/3112