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1sw6

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[[Image:1sw6.gif|left|200px]]
 
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{{Structure
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==S. CEREVISIAE SWI6 ANKYRIN-REPEAT FRAGMENT==
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|PDB= 1sw6 |SIZE=350|CAPTION= <scene name='initialview01'>1sw6</scene>, resolution 2.10&Aring;
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<StructureSection load='1sw6' size='340' side='right'caption='[[1sw6]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND=
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<table><tr><td colspan='2'>[[1sw6]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SW6 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1SW6 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]] 2.1&#8491;</td></tr>
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|GENE= SWI6 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 Saccharomyces cerevisiae])
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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=1sw6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1sw6 OCA], [https://pdbe.org/1sw6 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1sw6 RCSB], [https://www.ebi.ac.uk/pdbsum/1sw6 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1sw6 ProSAT]</span></td></tr>
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}}
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</table>
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== Function ==
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'''S. CEREVISIAE SWI6 ANKYRIN-REPEAT FRAGMENT'''
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[https://www.uniprot.org/uniprot/SWI6_YEAST SWI6_YEAST] Part of a complex involved in cell-cycle-dependent transcription. SWI4 and SWI6 are required for formation of the cell-cycle box factor-DNA complex. The repeated element in the upstream region of HO (5'-CACGAAAA-3') is called the cell cycle box (CCB).
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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==Overview==
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Check<jmol>
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Swi6 is a 92,000 Mr protein common to two distinct transcriptional activation complexes (SBF and MBF) that coordinate gene expression at the G1-S boundary of the yeast cell cycle. The X-ray structure of a central 36,000 Mr fragment has been determined and refined at 2.1 A resolution. The structure reveals a basic framework of five ankyrin repeat modules that is elaborated through a series of helical insertions distinguishing it from structures of other ankyrin repeat proteins. A second domain contains an approximately 30-residue region of extended structure that interacts with the ankyrin repeat core over a substantial proportion of its surface. Conservation of residues buried by these interactions indicates that all members of the Swi6/Cdc10 family share a similar architecture. Several temperature-sensitive mutations within Swi6 and Cdc10 appear to disrupt these interdomain contacts rather than destabilize the ankyrin repeat core. The unusual domain arrangement may be crucial for the modulation of interactions with other co-regulatory molecules such as cyclin-CDK complexes, and has implications for the quaternary interactions within the multisubunit SBF and MBF transcription complexes.
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/sw/1sw6_consurf.spt"</scriptWhenChecked>
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==About this Structure==
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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1SW6 is a [[Single protein]] structure of sequence 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=1SW6 OCA].
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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==Reference==
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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=1sw6 ConSurf].
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X-ray structural analysis of the yeast cell cycle regulator Swi6 reveals variations of the ankyrin fold and has implications for Swi6 function., Foord R, Taylor IA, Sedgwick SG, Smerdon SJ, Nat Struct Biol. 1999 Feb;6(2):157-65. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10048928 10048928]
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<div style="clear:both"></div>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Saccharomyces cerevisiae]]
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[[Category: Single protein]]
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[[Category: Foord R]]
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[[Category: Foord, R.]]
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[[Category: Sedgwick SG]]
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[[Category: Sedgwick, S G.]]
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[[Category: Smerdon SJ]]
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[[Category: Smerdon, S J.]]
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[[Category: Taylor IA]]
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[[Category: Taylor, I A.]]
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[[Category: ankyrin repeat]]
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[[Category: cell-cycle]]
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[[Category: transcription regulation]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 14:10:25 2008''
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Current revision

S. CEREVISIAE SWI6 ANKYRIN-REPEAT FRAGMENT

PDB ID 1sw6

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