1d3u
From Proteopedia
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TATA-BINDING PROTEIN/TRANSCRIPTION FACTOR (II)B/BRE+TATA-BOX COMPLEX FROM PYROCOCCUS WOESEI
Overview
Recently the definition of the metazoan RNA polymerase II and archaeal, core promoters has been expanded to include a region immediately upstream, of the TATA box called the B recognition element (BRE), so named because, eukaryal transcription factor TFIIB and its archaeal orthologue TFB, interact with the element in a sequence-specific manner. Here we present, the 2.4-A crystal structure of archaeal TBP and the C-terminal core of TFB, (TFB(c)) in a complex with an extended TATA-box-containing promoter that, provides a detailed picture of the stereospecific interactions between the, BRE and a helix-turn-helix motif in the C-terminal cyclin repeat of, TFB(c). This interaction is important in determining the level of basal, transcription and explicitly defines the direction of transcription.
About this Structure
1D3U is a Protein complex structure of sequences from Pyrococcus woesei. Full crystallographic information is available from OCA.
Reference
The structural basis for the oriented assembly of a TBP/TFB/promoter complex., Littlefield O, Korkhin Y, Sigler PB, Proc Natl Acad Sci U S A. 1999 Nov 23;96(24):13668-73. PMID:10570130
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