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RESEARCH PRODUCT

The transcription reinitiation properties of RNA polymerase III in the absence of transcription factors

Roberto FerrariGiorgio Dieci

subject

RNA polymerase IIISaccharomyces cerevisiae ProteinsTranscription GeneticvirusesShort CommunicationMolecular Sequence DataRNA polymerase IISaccharomyces cerevisiaeBiochemistryRNA polymerase IIITranscription Factor TFIIIBTranscription Factors TFIIIGene Expression Regulation FungalMolecular BiologyTFIIIBBase SequencebiologyGeneral transcription factorG-less cassetteCell BiologyMolecular biologyTranscription preinitiation complexbiology.proteinTranscription reinitiationTranscription factor II FTranscription factor II ETranscription factor II DTranscription factor II B

description

AbstractTranscription reinitiation by RNA polymerase (Pol) III proceeds through facilitated recycling, a process by which the terminating Pol III, assisted by the transcription factors TFIIIB and TFIIIC, rapidly reloads onto the same transcription unit. To get further insight into the Pol III transcription mechanism, we analyzed the kinetics of transcription initiation and reinitiation of a simplified in vitro transcription system consisting only of Pol III and template DNA. The data indicates that, in the absence of transcription factors, first-round transcription initiation by Pol III proceeds at a normal rate, while facilitated reinitiation during subsequent cycles is compromised.

yearjournalcountryeditionlanguage
2007-05-30Cellular and Molecular Biology Letters
https://doi.org/10.2478/s11658-007-0041-y