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Reference: Bushnell DA, et al. (1996) A minimal set of RNA polymerase II transcription protein interactions. J Biol Chem 271(33):20170-4

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Abstract

All pairwise interactions of RNA polymerase II and general transcription factors (TF) IIB, E, F, and H have been quantitated by surface plasmon resonance with the use of a Ni2+ chelate on the sensor surface where necessary to attain higher sensitivity. Only 4 of 10 possible interactions were found above the detection limit: TFIIB, -E, and -F binding to RNA polymerase II and TFIIE binding to TFIIH. These four interactions constitute a minimal set for the formation of a transcription initiation complex and may represent the primary interactions involved in assembly of the complex. Point mutations in TFIIB that alter the location of transcription start sites in vivo markedly diminished the affinity of TFIIB binding to RNA polymerase II. Protein blotting revealed an interaction between the largest subunit of TFIIE and third largest subunit of TFIIH, which may be responsible for TFIIE binding to TFIIH.

Reference Type
Journal Article | Research Support, U.S. Gov't, P.H.S.
Authors
Bushnell DA, Bamdad C, Kornberg RD
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Gene Ontology Annotations

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Gene/Complex Qualifier Gene Ontology Term Aspect Annotation Extension Evidence Method Source Assigned On Reference