1tba: Difference between revisions

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[[Image:1tba.jpg|left|200px]]
{{Seed}}
[[Image:1tba.png|left|200px]]


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{{STRUCTURE_1tba|  PDB=1tba  |  SCENE=  }}  
{{STRUCTURE_1tba|  PDB=1tba  |  SCENE=  }}  


'''SOLUTION STRUCTURE OF A TBP-TAFII230 COMPLEX: PROTEIN MIMICRY OF THE MINOR GROOVE SURFACE OF THE TATA BOX UNWOUND BY TBP, NMR, 25 STRUCTURES'''
===SOLUTION STRUCTURE OF A TBP-TAFII230 COMPLEX: PROTEIN MIMICRY OF THE MINOR GROOVE SURFACE OF THE TATA BOX UNWOUND BY TBP, NMR, 25 STRUCTURES===




==Overview==
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General transcription factor TFIID consists of TATA box-binding protein (TBP) and TBP-associated factors (TAF(II)s), which together play a central role in both positive and negative regulation of transcription. The N-terminal region of the 230 kDa Drosophila TAF(II) (dTAF(II)230) binds directly to TBP and inhibits TBP binding to the TATA box. We report here the solution structure of the complex formed by dTAF(II)230 N-terminal region (residues 11-77) and TBP. dTAF(II)230(11-77) comprises three alpha helices and a beta hairpin, forming a core that occupies the concave DNA-binding surface of TBP. The TBP-binding surface of dTAF(II)230 markedly resembles the minor groove surface of the partially unwound TATA box in the TBP-TATA complex. This protein mimicry of the TATA element surface provides the structural basis of the mechanism by which dTAF(II)230 negatively controls the TATA box-binding activity within the TFIID complex.
The line below this paragraph, {{ABSTRACT_PUBMED_9741622}}, adds the Publication Abstract to the page
(as it appears on PubMed at http://www.pubmed.gov), where 9741622 is the PubMed ID number.
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{{ABSTRACT_PUBMED_9741622}}


==About this Structure==
==About this Structure==
1TBA is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster] and [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TBA OCA].  
1TBA is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster] and [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TBA OCA].  


==Reference==
==Reference==
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[[Category: Tbp]]
[[Category: Tbp]]
[[Category: Tfiid]]
[[Category: Tfiid]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 09:45:33 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 05:52:57 2008''
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