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1bc7

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[[Image:1bc7.gif|left|200px]]<br /><applet load="1bc7" size="350" color="white" frame="true" align="right" spinBox="true"
 
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caption="1bc7, resolution 2.01&Aring;" />
 
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'''SERUM RESPONSE FACTOR ACCESSORY PROTEIN 1A (SAP-1)/DNA COMPLEX'''<br />
 
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==Overview==
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==SERUM RESPONSE FACTOR ACCESSORY PROTEIN 1A (SAP-1)/DNA COMPLEX==
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SAP-1 is a member of the Ets transcription factors and cooperates with SRF protein to activate transcription of the c-fos protooncogene. The crystal structures of the conserved ETS domain of SAP-1 bound to DNA sequences from the E74 and c-fos promoters reveal that a set of conserved residues contact a GGA core DNA sequence. Discrimination for sequences outside this core is mediated by DNA contacts from conserved and nonconserved protein residues and sequence-dependent DNA structural properties characteristic of A-form DNA structure. Comparison with the related PU.1/DNA and GABPalpha/beta/DNA complexes provides general insights into DNA discrimination between Ets proteins. Modeling studies of a SAP-1/SRF/DNA complex suggest that SRF may modulate SAP-1 binding to DNA by interacting with its ETS domain.
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<StructureSection load='1bc7' size='340' side='right'caption='[[1bc7]], [[Resolution|resolution]] 2.01&Aring;' scene=''>
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== Structural highlights ==
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==About this Structure==
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<table><tr><td colspan='2'>[[1bc7]] is a 3 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=1BC7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1BC7 FirstGlance]. <br>
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1BC7 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BC7 OCA].
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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]] 2.01&#8491;</td></tr>
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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=1bc7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bc7 OCA], [https://pdbe.org/1bc7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1bc7 RCSB], [https://www.ebi.ac.uk/pdbsum/1bc7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1bc7 ProSAT]</span></td></tr>
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==Reference==
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</table>
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Structures of SAP-1 bound to DNA targets from the E74 and c-fos promoters: insights into DNA sequence discrimination by Ets proteins., Mo Y, Vaessen B, Johnston K, Marmorstein R, Mol Cell. 1998 Aug;2(2):201-12. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=9734357 9734357]
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== Function ==
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[https://www.uniprot.org/uniprot/ELK4_HUMAN ELK4_HUMAN] Involved in both transcriptional activation and repression. Interaction with SIRT7 leads to recruitment and stabilization of SIRT7 at promoters, followed by deacetylation of histone H3 at 'Lys-18' (H3K18Ac) and subsequent transcription repression. Forms a ternary complex with the serum response factor (SRF). Requires DNA-bound SRF for ternary complex formation and makes extensive DNA contacts to the 5'side of SRF, but does not bind DNA autonomously.
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== Evolutionary Conservation ==
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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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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/bc/1bc7_consurf.spt"</scriptWhenChecked>
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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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</jmolCheckbox>
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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=1bc7 ConSurf].
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<div style="clear:both"></div>
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__TOC__
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Johnston, K.]]
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[[Category: Johnston K]]
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[[Category: Marmorstein, R.]]
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[[Category: Marmorstein R]]
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[[Category: Mo, Y.]]
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[[Category: Mo Y]]
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[[Category: Vaessen, B.]]
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[[Category: Vaessen B]]
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[[Category: complex (dna-binding protein/dna)]]
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[[Category: crystal structure]]
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[[Category: dna-binding domain]]
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[[Category: dna-binding specificity]]
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[[Category: ets domain]]
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[[Category: winged helix-turn-helix]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 11:53:44 2008''
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Current revision

SERUM RESPONSE FACTOR ACCESSORY PROTEIN 1A (SAP-1)/DNA COMPLEX

PDB ID 1bc7

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