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1sv1

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{{Seed}}
 
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[[Image:1sv1.png|left|200px]]
 
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==NMR structure of the ThKaiA180C-CIIABD complex (25-structure ensemble)==
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The line below this paragraph, containing "STRUCTURE_1sv1", creates the "Structure Box" on the page.
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<StructureSection load='1sv1' size='340' side='right'caption='[[1sv1]]' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1sv1]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermosynechococcus_vestitus_BP-1 Thermosynechococcus vestitus BP-1]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SV1 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1SV1 FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=1sv1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1sv1 OCA], [https://pdbe.org/1sv1 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1sv1 RCSB], [https://www.ebi.ac.uk/pdbsum/1sv1 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1sv1 ProSAT]</span></td></tr>
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{{STRUCTURE_1sv1| PDB=1sv1 | SCENE= }}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/KAIA_THEVB KAIA_THEVB] Key component of the KaiABC oscillator complex, which constitutes the main circadian regulator in cyanobacteria. Complex composition changes during the circadian cycle to control KaiC phosphorylation. KaiA stimulates KaiC autophosphorylation, while KaiB sequesters KaiA, leading to KaiC autodephosphorylation. KaiA binding to the KaiC CII domain during the subjective day yields KaiA(2-4):KaiC(6) complexes which stimulate KaiC autophosphorylation. Phospho-Ser-431 KaiC accumulation triggers binding of KaiB during the subjective night to form the KaiB(6):KaiC(6) complex, leading to changes in the output regulators CikA and SasA. KaiB(6):KaiC(6) formation exposes a site for KaiA binding on KaiB that sequesters KaiA from KaiC's CII domain, making the KaiC(6):KaiB(6):KaiA(12) complex resulting in KaiC autodephosphorylation. Complete dephosphorylation of KaiC leads to dissociation of KaiA(2):KaiB(1), completing 1 cycle of the Kai oscillator (By similarity). Formation of the KaiB:KaiC complex is promoted by KaiA, helping switch KaiC from its autophosphorylation to autodephosphatase function (PubMed:24112939).[UniProtKB:Q79PF6]<ref>PMID:24112939</ref> Binds oxidized quinones via the N-terminal PsR domain, allowing it to sense redox changes and possibly mediate clock input.[UniProtKB:Q79PF6]
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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/sv/1sv1_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=1sv1 ConSurf].
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<div style="clear:both"></div>
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===NMR structure of the ThKaiA180C-CIIABD complex (25-structure ensemble)===
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==See Also==
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*[[Circadian clock protein 3D structures|Circadian clock protein 3D structures]]
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== References ==
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<references/>
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The line below this paragraph, {{ABSTRACT_PUBMED_15256595}}, adds the Publication Abstract to the page
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__TOC__
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(as it appears on PubMed at http://www.pubmed.gov), where 15256595 is the PubMed ID number.
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</StructureSection>
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-->
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[[Category: Large Structures]]
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{{ABSTRACT_PUBMED_15256595}}
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[[Category: Thermosynechococcus vestitus BP-1]]
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[[Category: LiWang AC]]
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==About this Structure==
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[[Category: Vakonakis I]]
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1SV1 is a 4 chains structure of sequences from [http://en.wikipedia.org/wiki/Bacteria Bacteria]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SV1 OCA].
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==Reference==
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<ref group="xtra">PMID:15256595</ref><references group="xtra"/>
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[[Category: Bacteria]]
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[[Category: LiWang, A C.]]
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[[Category: Vakonakis, I.]]
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[[Category: Protein-peptide complex]]
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[[Category: X-class four helix bundle]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Feb 17 19:08:41 2009''
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Current revision

NMR structure of the ThKaiA180C-CIIABD complex (25-structure ensemble)

PDB ID 1sv1

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