2han

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[[Image:2han.gif|left|200px]]
[[Image:2han.gif|left|200px]]
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{{Structure
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|PDB= 2han |SIZE=350|CAPTION= <scene name='initialview01'>2han</scene>, resolution 1.95&Aring;
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The line below this paragraph, containing "STRUCTURE_2han", creates the "Structure Box" on the page.
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|SITE=
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|LIGAND= <scene name='pdbligand=DA:2&#39;-DEOXYADENOSINE-5&#39;-MONOPHOSPHATE'>DA</scene>, <scene name='pdbligand=DC:2&#39;-DEOXYCYTIDINE-5&#39;-MONOPHOSPHATE'>DC</scene>, <scene name='pdbligand=DG:2&#39;-DEOXYGUANOSINE-5&#39;-MONOPHOSPHATE'>DG</scene>, <scene name='pdbligand=DT:THYMIDINE-5&#39;-MONOPHOSPHATE'>DT</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene>
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|GENE= usp, Cf1, NR2B4 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7227 Drosophila melanogaster]), EcR, NR1H1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7227 Drosophila melanogaster])
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|DOMAIN=
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{{STRUCTURE_2han| PDB=2han | SCENE= }}
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|RELATEDENTRY=
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2han FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2han OCA], [http://www.ebi.ac.uk/pdbsum/2han PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2han RCSB]</span>
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'''Structural basis of heterodimeric ecdysteroid receptor interaction with natural response element hsp27 gene promoter'''
'''Structural basis of heterodimeric ecdysteroid receptor interaction with natural response element hsp27 gene promoter'''
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[[Category: Orlowski, M.]]
[[Category: Orlowski, M.]]
[[Category: Ozyhar, A.]]
[[Category: Ozyhar, A.]]
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[[Category: dna-binding]]
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[[Category: Dna-binding]]
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[[Category: nuclear protein]]
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[[Category: Nuclear protein]]
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[[Category: nuclear receptor]]
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[[Category: Nuclear receptor]]
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[[Category: transcription factor]]
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[[Category: Transcription factor]]
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[[Category: transcription regulation]]
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[[Category: Transcription regulation]]
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[[Category: zinc finger]]
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[[Category: Zinc finger]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 06:03:45 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 03:27:46 2008''
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Revision as of 03:03, 4 May 2008

Image:2han.gif

Template:STRUCTURE 2han

Structural basis of heterodimeric ecdysteroid receptor interaction with natural response element hsp27 gene promoter


Overview

The heterodimer of the ecdysone receptor (EcR) and ultraspiracle (Usp), members of the nuclear receptors superfamily, is considered as the functional receptor for ecdysteroids initiating molting and metamorphosis in insects. Here we report the 1.95 A structure of the complex formed by the DNA-binding domains (DBDs) the EcR and the Usp, bound to the natural pseudopalindromic response element. Comparison of the structure with that obtained previously, using an idealized response element, shows how the EcRDBD, which has been previously reported to possess extraordinary flexibility, accommodates DNA-induced structural changes. Part of the C-terminal extension (CTE) of the EcRDBD folds into an alpha-helix whose location in the minor groove does not match any of the locations previously observed for nuclear receptors. Mutational analyses suggest that the alpha-helix is a component of EcR-box, a novel element indispensable for DNA-binding and located within the nuclear receptor CTE. This element seems to be a general feature of all known EcRs.

About this Structure

2HAN is a Protein complex structure of sequences from Drosophila melanogaster. Full crystallographic information is available from OCA.

Reference

Novel DNA-binding element within the C-terminal extension of the nuclear receptor DNA-binding domain., Jakob M, Kolodziejczyk R, Orlowski M, Krzywda S, Kowalska A, Dutko-Gwozdz J, Gwozdz T, Kochman M, Jaskolski M, Ozyhar A, Nucleic Acids Res. 2007;35(8):2705-18. Epub 2007 Apr 10. PMID:17426125 Page seeded by OCA on Sun May 4 06:03:45 2008

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OCA

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