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TATA-binding protein and associated factors in polymerase II and polymerase III transcription. 1993

R E Meyers, and P A Sharp
Center for Cancer Research, Massachusetts Institute of Technology, Cambridge, 02139.

Transcription by RNA polymerase I (pol I), pol II, and pol III requires the TATA-binding protein (TBP). This protein functions in association with distinct TBP-associated factors (TAFs) which may specify the nature of the polymerase selected for initiation at a promoter site. In the pol III transcription system, the TBP-TAF complex is a component of the TFIIIB factor. This factor has been resolved into a TBP-TAF complex and another component, both of which are required for reconstitution of transcription by pol III. Neither the TBP-TAF complexes B-TFIID and D-TFIID, which were previously characterized as active for pol II transcription, nor TBP alone can complement pol III transcription reactions that are dependent upon the TBP-TAF subcomponent of TFIIIB. Surprisingly, the TBP-TAF subcomponent of TFIIIB is active in reconstitution of pol II transcription.

UI MeSH Term Description Entries
D004268 DNA-Binding Proteins Proteins which bind to DNA. The family includes proteins which bind to both double- and single-stranded DNA and also includes specific DNA binding proteins in serum which can be used as markers for malignant diseases. DNA Helix Destabilizing Proteins,DNA-Binding Protein,Single-Stranded DNA Binding Proteins,DNA Binding Protein,DNA Single-Stranded Binding Protein,SS DNA BP,Single-Stranded DNA-Binding Protein,Binding Protein, DNA,DNA Binding Proteins,DNA Single Stranded Binding Protein,DNA-Binding Protein, Single-Stranded,Protein, DNA-Binding,Single Stranded DNA Binding Protein,Single Stranded DNA Binding Proteins
D006367 HeLa Cells The first continuously cultured human malignant CELL LINE, derived from the cervical carcinoma of Henrietta Lacks. These cells are used for, among other things, VIRUS CULTIVATION and PRECLINICAL DRUG EVALUATION assays. Cell, HeLa,Cells, HeLa,HeLa Cell
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012319 RNA Polymerase II A DNA-dependent RNA polymerase present in bacterial, plant, and animal cells. It functions in the nucleoplasmic structure and transcribes DNA into RNA. It has different requirements for cations and salt than RNA polymerase I and is strongly inhibited by alpha-amanitin. EC 2.7.7.6. DNA-Dependent RNA Polymerase II,RNA Pol II,RNA Polymerase B,DNA Dependent RNA Polymerase II
D012320 RNA Polymerase III A DNA-dependent RNA polymerase present in bacterial, plant, and animal cells. It functions in the nucleoplasmic structure where it transcribes DNA into RNA. It has specific requirements for cations and salt and has shown an intermediate sensitivity to alpha-amanitin in comparison to RNA polymerase I and II. DNA-Dependent RNA Polymerase III,RNA Polymerase C,DNA Dependent RNA Polymerase III,Polymerase C, RNA,Polymerase III, RNA
D014157 Transcription Factors Endogenous substances, usually proteins, which are effective in the initiation, stimulation, or termination of the genetic transcription process. Transcription Factor,Factor, Transcription,Factors, Transcription
D014158 Transcription, Genetic The biosynthesis of RNA carried out on a template of DNA. The biosynthesis of DNA from an RNA template is called REVERSE TRANSCRIPTION. Genetic Transcription
D035181 TATA-Box Binding Protein A general transcription factor that plays a major role in the activation of eukaryotic genes transcribed by RNA POLYMERASES. It binds specifically to the TATA BOX promoter element, which lies close to the position of transcription initiation in RNA transcribed by RNA POLYMERASE II. Although considered a principal component of TRANSCRIPTION FACTOR TFIID it also takes part in general transcription factor complexes involved in RNA POLYMERASE I and RNA POLYMERASE III transcription. TATA-Box-Binding Protein,RNA Polymerase II TATA-Binding Protein,TATA-Binding Protein,Transcription Factor TBP,RNA Polymerase II TATA Binding Protein,TATA Binding Protein,TATA Box Binding Protein
D035361 Transcription Factor TFIIIB One of several general transcription factors that are specific for RNA POLYMERASE III. TFIIIB recruits and positions pol III over the initiation site and remains stably bound to the DNA through multiple rounds of re-initiation by RNA POLYMERASE III. TFIIIB,TFIIIB-alpha,TFIIIB-beta,Transcription Factor IIIB,Factor IIIB, Transcription,Factor TFIIIB, Transcription,TFIIIB alpha,TFIIIB, Transcription Factor

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