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1fyk

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{{STRUCTURE_1fyk| PDB=1fyk | SCENE= }}
{{STRUCTURE_1fyk| PDB=1fyk | SCENE= }}
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'''SERENDIPITOUS CRYSTAL STRUCTURE CONTAINING THE HEAT SHOCK TRANSCRIPTION FACTOR'S DNA BINDING DOMAIN AND COGNATE DNA THAT IS TRANSLATIONALLY DISORDERED'''
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===SERENDIPITOUS CRYSTAL STRUCTURE CONTAINING THE HEAT SHOCK TRANSCRIPTION FACTOR'S DNA BINDING DOMAIN AND COGNATE DNA THAT IS TRANSLATIONALLY DISORDERED===
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==Overview==
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We present here three high-resolution crystal structures of complexes between the DNA-binding domain of the heat-shock transcription factor (HSF) and DNA oligomers. Although the DNA oligomers contain HSF's specific binding sequence, called a heat-shock element, the crystal structures do not contain the specific protein-DNA complex. In one crystal structure, the 10 base pair DNA oligomer is statically disordered. In the other two related structures, the 12 base pair DNA oligomers are in unique positions, but the protein-DNA contacts in these two crystals are not sequence specific. In all three structures, the DNA appears to act as a rigid, polyanion scaffold to support columns of proteins in a crystalline lattice. A robust crystal packing interface between protein monomers obscures the true DNA-binding surface, known from previous genetic and biochemical studies. By redesigning the protein to interfere with the crystal lattice contacts, we were able to obtain physiologically relevant crystals in a specific protein-DNA complex. Thus, a crystal-packing interface was able to prevent the weak, but physiological relevant interactions between a protein and DNA.
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(as it appears on PubMed at http://www.pubmed.gov), where 11599025 is the PubMed ID number.
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{{ABSTRACT_PUBMED_11599025}}
==About this Structure==
==About this Structure==
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[[Category: Protein-protein interface]]
[[Category: Protein-protein interface]]
[[Category: Static disorder]]
[[Category: Static disorder]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 16:54:44 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 04:08:01 2008''

Revision as of 01:08, 1 July 2008

Image:1fyk.png

Template:STRUCTURE 1fyk

SERENDIPITOUS CRYSTAL STRUCTURE CONTAINING THE HEAT SHOCK TRANSCRIPTION FACTOR'S DNA BINDING DOMAIN AND COGNATE DNA THAT IS TRANSLATIONALLY DISORDERED

Template:ABSTRACT PUBMED 11599025

About this Structure

1FYK is a Single protein structure of sequence from Kluyveromyces lactis. Full crystallographic information is available from OCA.

Reference

Crystal packing interaction that blocks crystallization of a site-specific DNA binding protein-DNA complex., Littlefield O, Nelson HC, Proteins. 2001 Nov 15;45(3):219-28. PMID:11599025

Page seeded by OCA on Tue Jul 1 04:08:01 2008

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