1nh2
From Proteopedia
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| - | [[Image:1nh2.gif|left|200px]] | + | [[Image:1nh2.gif|left|200px]] |
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| - | '''Crystal structure of a yeast TFIIA/TBP/DNA complex''' | + | {{Structure |
| + | |PDB= 1nh2 |SIZE=350|CAPTION= <scene name='initialview01'>1nh2</scene>, resolution 1.90Å | ||
| + | |SITE= | ||
| + | |LIGAND= | ||
| + | |ACTIVITY= | ||
| + | |GENE= SPT15 OR BTF1 OR YER148W ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 Saccharomyces cerevisiae]), TOA1 OR YOR194C ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 Saccharomyces cerevisiae]), TOA2 OR YKL058W ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 Saccharomyces cerevisiae]) | ||
| + | }} | ||
| + | |||
| + | '''Crystal structure of a yeast TFIIA/TBP/DNA complex''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1NH2 is a [ | + | 1NH2 is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NH2 OCA]. |
==Reference== | ==Reference== | ||
| - | Novel interactions between the components of human and yeast TFIIA/TBP/DNA complexes., Bleichenbacher M, Tan S, Richmond TJ, J Mol Biol. 2003 Sep 26;332(4):783-93. PMID:[http:// | + | Novel interactions between the components of human and yeast TFIIA/TBP/DNA complexes., Bleichenbacher M, Tan S, Richmond TJ, J Mol Biol. 2003 Sep 26;332(4):783-93. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12972251 12972251] |
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
[[Category: Saccharomyces cerevisiae]] | [[Category: Saccharomyces cerevisiae]] | ||
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[[Category: transcription/dna]] | [[Category: transcription/dna]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 12:56:45 2008'' |
Revision as of 10:56, 20 March 2008
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| , resolution 1.90Å | |||||||
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| Gene: | SPT15 OR BTF1 OR YER148W (Saccharomyces cerevisiae), TOA1 OR YOR194C (Saccharomyces cerevisiae), TOA2 OR YKL058W (Saccharomyces cerevisiae) | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal structure of a yeast TFIIA/TBP/DNA complex
Overview
RNA polymerase II-dependent transcription requires the assembly of a multi-protein, preinitiation complex on core promoter elements. Transcription factor IID (TFIID) comprising the TATA box-binding protein (TBP) and TBP-associated factors (TAFs) is responsible for promoter recognition in this complex. Subsequent association of TFIIA and TFIIB provides enhanced complex stability. TFIIA is required for transcriptional stimulation by certain viral and cellular activators, and favors formation of the preinitiation complex in the presence of repressor NC2. The X-ray structures of human and yeast TBP/TFIIA/DNA complexes at 2.1A and 1.9A resolution, respectively, are presented here and seen to resemble each other closely. The interactions made by human TFIIA with TBP and DNA within and upstream of the TATA box, including those involving water molecules, are described and compared to the yeast structure. Of particular interest is a previously unobserved region of TFIIA that extends the binding interface with TBP in the yeast, but not in the human complex, and that further elucidates biochemical and genetic results.
About this Structure
1NH2 is a Protein complex structure of sequences from Saccharomyces cerevisiae. Full crystallographic information is available from OCA.
Reference
Novel interactions between the components of human and yeast TFIIA/TBP/DNA complexes., Bleichenbacher M, Tan S, Richmond TJ, J Mol Biol. 2003 Sep 26;332(4):783-93. PMID:12972251
Page seeded by OCA on Thu Mar 20 12:56:45 2008
