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1xrx
From Proteopedia
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==Crystal structure of a DNA-binding protein== | ==Crystal structure of a DNA-binding protein== | ||
| - | <StructureSection load='1xrx' size='340' side='right' caption='[[1xrx]], [[Resolution|resolution]] 2.15Å' scene=''> | + | <StructureSection load='1xrx' size='340' side='right'caption='[[1xrx]], [[Resolution|resolution]] 2.15Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[1xrx]] is a 4 chain structure with sequence from [ | + | <table><tr><td colspan='2'>[[1xrx]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1XRX OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1XRX FirstGlance]. <br> |
| - | </td></tr><tr><td class="sblockLbl"><b>[[ | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.15Å</td></tr> |
| - | <tr><td class="sblockLbl"><b>[[ | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr> |
| - | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1xrx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1xrx OCA], [https://pdbe.org/1xrx PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1xrx RCSB], [https://www.ebi.ac.uk/pdbsum/1xrx PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1xrx ProSAT]</span></td></tr> | |
| - | <tr | + | </table> |
| - | + | == Function == | |
| - | <table> | + | [https://www.uniprot.org/uniprot/SEQA_ECOLI SEQA_ECOLI] Negative regulator of replication initiation, which contributes to regulation of DNA replication and ensures that replication initiation occurs exactly once per chromosome per cell cycle. Binds to pairs of hemimethylated GATC sequences in the oriC region, thus preventing assembly of replication proteins and re-initiation at newly replicated origins. Repression is relieved when the region becomes fully methylated. Can also bind to hemimethylated GATC sequences outside of oriC region. Binds, with less affinity, to fully methylated GATC sites and affects timing of replication. May play a role in chromosome organization and gene regulation.<ref>PMID:8011018</ref> <ref>PMID:7891562</ref> <ref>PMID:7553853</ref> <ref>PMID:11080170</ref> <ref>PMID:10931282</ref> <ref>PMID:20689753</ref> |
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
| - | <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/xr/1xrx_consurf.spt"</scriptWhenChecked> | + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/xr/1xrx_consurf.spt"</scriptWhenChecked> |
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
</jmolCheckbox> | </jmolCheckbox> | ||
| - | </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/ | + | </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=1xrx ConSurf]. |
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
| + | <div class="pdbe-citations 1xrx" style="background-color:#fffaf0;"></div> | ||
== References == | == References == | ||
<references/> | <references/> | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Escherichia coli]] | [[Category: Escherichia coli]] | ||
| - | [[Category: Austin | + | [[Category: Large Structures]] |
| - | [[Category: Brendler | + | [[Category: Austin S]] |
| - | [[Category: Ghirlando | + | [[Category: Brendler T]] |
| - | [[Category: Guarne | + | [[Category: Ghirlando R]] |
| - | [[Category: Yang | + | [[Category: Guarne A]] |
| - | [[Category: Zhao | + | [[Category: Yang W]] |
| - | + | [[Category: Zhao Q]] | |
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Current revision
Crystal structure of a DNA-binding protein
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Categories: Escherichia coli | Large Structures | Austin S | Brendler T | Ghirlando R | Guarne A | Yang W | Zhao Q
