1r5q
From Proteopedia
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- | [[ | + | ==Crystal Structure Analysis of Kai A from PCC7120== |
+ | <StructureSection load='1r5q' size='340' side='right' caption='[[1r5q]], [[Resolution|resolution]] 2.00Å' scene=''> | ||
+ | == Structural highlights == | ||
+ | <table><tr><td colspan='2'>[[1r5q]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Nostoc_sp. Nostoc sp.]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1R5Q OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1R5Q FirstGlance]. <br> | ||
+ | </td></tr><tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Kai A ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1180 Nostoc sp.])</td></tr> | ||
+ | <tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1r5q FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1r5q OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1r5q RCSB], [http://www.ebi.ac.uk/pdbsum/1r5q PDBsum]</span></td></tr> | ||
+ | <table> | ||
+ | == Evolutionary Conservation == | ||
+ | [[Image:Consurf_key_small.gif|200px|right]] | ||
+ | Check<jmol> | ||
+ | <jmolCheckbox> | ||
+ | <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/r5/1r5q_consurf.spt"</scriptWhenChecked> | ||
+ | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
+ | <text>to colour the structure by Evolutionary Conservation</text> | ||
+ | </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/chain_selection.php?pdb_ID=2ata ConSurf]. | ||
+ | <div style="clear:both"></div> | ||
+ | <div style="background-color:#fffaf0;"> | ||
+ | == Publication Abstract from PubMed == | ||
+ | The cyanobacterial clock proteins KaiA and KaiB are proposed as regulators of the circadian rhythm in cyanobacteria. Mutations in both proteins have been reported to alter or abolish circadian rhythmicity. Here, we present molecular models of both KaiA and KaiB from the cyanobacteria Anabaena sp PCC7120 deduced by crystal structure analysis, and we discuss how clock-changing or abolishing mutations may cause their resulting circadian phenotype. The overall fold of the KaiA monomer is that of a four-helix bundle. KaiB, on the other hand, adopts an alpha-beta meander motif. Both proteins purify and crystallize as dimers. While the folds of the two proteins are clearly different, their size and some surface features of the physiologically relevant dimers are very similar. Notably, the functionally relevant residues Arg 69 of KaiA and Arg 23 of KaiB align well in space. The apparent structural similarities suggest that KaiA and KaiB may compete for a potential common binding site on KaiC. | ||
- | + | Anabaena circadian clock proteins KaiA and KaiB reveal a potential common binding site to their partner KaiC.,Garces RG, Wu N, Gillon W, Pai EF EMBO J. 2004 Apr 21;23(8):1688-98. Epub 2004 Apr 8. PMID:15071498<ref>PMID:15071498</ref> | |
- | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
+ | </div> | ||
- | + | ==See Also== | |
- | + | *[[Circadian clock protein|Circadian clock protein]] | |
- | == | + | == References == |
- | [[ | + | <references/> |
- | + | __TOC__ | |
- | == | + | </StructureSection> |
- | < | + | |
[[Category: Nostoc sp.]] | [[Category: Nostoc sp.]] | ||
[[Category: Garces, R G.]] | [[Category: Garces, R G.]] |
Revision as of 14:41, 29 September 2014
Crystal Structure Analysis of Kai A from PCC7120
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