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1dp7

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[[Image:1dp7.gif|left|200px]]
 
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{{Structure
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==COCRYSTAL STRUCTURE OF RFX-DBD IN COMPLEX WITH ITS COGNATE X-BOX BINDING SITE==
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|PDB= 1dp7 |SIZE=350|CAPTION= <scene name='initialview01'>1dp7</scene>, resolution 1.5&Aring;
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<StructureSection load='1dp7' size='340' side='right'caption='[[1dp7]], [[Resolution|resolution]] 1.50&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=BRU:5-BROMO-2&#39;-DEOXYURIDINE-5&#39;-MONOPHOSPHATE'>BRU</scene>, <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=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene>
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<table><tr><td colspan='2'>[[1dp7]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1DP7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1DP7 FirstGlance]. <br>
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|ACTIVITY=
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.5&#8491;</td></tr>
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|GENE=
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BRU:5-BROMO-2-DEOXYURIDINE-5-MONOPHOSPHATE'>BRU</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene></td></tr>
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|DOMAIN=
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1dp7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1dp7 OCA], [https://pdbe.org/1dp7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1dp7 RCSB], [https://www.ebi.ac.uk/pdbsum/1dp7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1dp7 ProSAT]</span></td></tr>
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|RELATEDENTRY=
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</table>
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1dp7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1dp7 OCA], [http://www.ebi.ac.uk/pdbsum/1dp7 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1dp7 RCSB]</span>
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== Function ==
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}}
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[https://www.uniprot.org/uniprot/RFX1_HUMAN RFX1_HUMAN] Regulatory factor essential for MHC class II genes expression. Binds to the X boxes of MHC class II genes. Also binds to an inverted repeat (ENH1) required for hepatitis B virus genes expression and to the most upstream element (alpha) of the RPL30 promoter.
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== Evolutionary Conservation ==
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'''COCRYSTAL STRUCTURE OF RFX-DBD IN COMPLEX WITH ITS COGNATE X-BOX BINDING SITE'''
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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==Overview==
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/dp/1dp7_consurf.spt"</scriptWhenChecked>
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Regulatory factor X (RFX) proteins are transcriptional activators that recognize X-boxes (DNA of the sequence 5'-GTNRCC(0-3N)RGYAAC-3', where N is any nucleotide, R is a purine and Y is a pyrimidine) using a highly conserved 76-residue DNA-binding domain (DBD). DNA-binding defects in the protein RFX5 cause bare lymphocyte syndrome or major histocompatibility antigen class II deficiency. RFX1, -2 and -3 regulate expression of other medically important gene products (for example, interleukin-5 receptor alpha chain, IL-5R alpha). Fusions of the ligand-binding domain of the oestrogen receptor with the DBD of RFX4 occur in some human breast tumours. Here we present a 1.5 A-resolution structure of two copies of the DBD of human RFX1 (hRFX1) binding cooperatively to a symmetrical X-box. hRFX1 is an unusual member of the winged-helix subfamily of helix-turn-helix proteins because it uses a beta-hairpin (or wing) to recognize DNA instead of the recognition helix typical of helix-turn-helix proteins. A new model for interactions between linker histones and DNA is proposed.
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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==About this Structure==
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</jmolCheckbox>
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1DP7 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/ ]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1DP7 OCA].
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1dp7 ConSurf].
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<div style="clear:both"></div>
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==Reference==
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__TOC__
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Structure of the winged-helix protein hRFX1 reveals a new mode of DNA binding., Gajiwala KS, Chen H, Cornille F, Roques BP, Reith W, Mach B, Burley SK, Nature. 2000 Feb 24;403(6772):916-21. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10706293 10706293]
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</StructureSection>
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[[Category: Single protein]]
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[[Category: Homo sapiens]]
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[[Category: Burley, S K.]]
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[[Category: Large Structures]]
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[[Category: Chen, H.]]
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[[Category: Burley SK]]
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[[Category: Cornille, F.]]
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[[Category: Chen H]]
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[[Category: Gajiwala, K S.]]
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[[Category: Cornille F]]
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[[Category: Mach, B.]]
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[[Category: Gajiwala KS]]
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[[Category: Reith, W.]]
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[[Category: Mach B]]
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[[Category: Roques, B P.]]
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[[Category: Reith W]]
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[[Category: mhc class ii transcription factor]]
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[[Category: Roques BP]]
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[[Category: novel mode of dna recognition]]
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[[Category: protein-dna cocrystal structure]]
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[[Category: winged helix]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 19:45:54 2008''
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Current revision

COCRYSTAL STRUCTURE OF RFX-DBD IN COMPLEX WITH ITS COGNATE X-BOX BINDING SITE

PDB ID 1dp7

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