2v1a

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[[Image:2v1a.png|left|200px]]
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==N- AND C-TERMINAL HELICES OF OAT LOV2 (404-546) ARE INVOLVED IN LIGHT-INDUCED SIGNAL TRANSDUCTION (ROOM TEMPERATURE (293K) DARK STRUCTURE OF LOV2 (404-546))==
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<StructureSection load='2v1a' size='340' side='right' caption='[[2v1a]], [[Resolution|resolution]] 1.65&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2v1a]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Avena_sativa Avena sativa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2V1A OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2V1A FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FMN:FLAVIN+MONONUCLEOTIDE'>FMN</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene><br>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2v0u|2v0u]], [[2v0w|2v0w]], [[2v1b|2v1b]]</td></tr>
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<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=2v1a FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2v1a OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2v1a RCSB], [http://www.ebi.ac.uk/pdbsum/2v1a PDBsum]</span></td></tr>
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<table>
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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/v1/2v1a_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/chain_selection.php?pdb_ID=2ata ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Light sensing by photoreceptors controls phototropism, chloroplast movement, stomatal opening, and leaf expansion in plants. Understanding the molecular mechanism by which these processes are regulated requires a quantitative description of photoreceptor dynamics. We focus on a light-driven signal transduction mechanism in the LOV2 domain (LOV, light, oxygen, voltage) of the blue light photoreceptor phototropin 1 from Avena sativa (oat). High-resolution crystal structures of the dark and light states of an oat LOV2 construct including residues Leu404 through Leu546 (LOV2 (404-546)) have been determined at 105 and 293 K. In all four structures, LOV2 (404-546) exhibits the typical Per-ARNT-Sim (PAS) fold, flanked by an additional conserved N-terminal turn-helix-turn motif and a C-terminal flanking region containing an amphipathic Jalpha helix. These regions dock on the LOV2 core domain and bury several hydrophobic residues of the central beta-sheet of the core domain that would otherwise be exposed to solvent. Light structures of LOV2 (404-546) reveal that formation of the covalent bond between Cys450 and the C4a atom of the flavin mononucleotide (FMN) results in local rearrangement of the hydrogen-bonding network in the FMN binding pocket. These rearrangements are associated with disruption of the Asn414-Asp515 hydrogen bond on the surface of the protein and displacement of the N- and C-terminal flanking regions of LOV2 (404-546), both of which constitute a structural signal.
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{{STRUCTURE_2v1a| PDB=2v1a | SCENE= }}
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N- and C-terminal flanking regions modulate light-induced signal transduction in the LOV2 domain of the blue light sensor phototropin 1 from Avena sativa.,Halavaty AS, Moffat K Biochemistry. 2007 Dec 11;46(49):14001-9. Epub 2007 Nov 15. PMID:18001137<ref>PMID:18001137</ref>
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===N- AND C-TERMINAL HELICES OF OAT LOV2 (404-546) ARE INVOLVED IN LIGHT-INDUCED SIGNAL TRANSDUCTION (ROOM TEMPERATURE (293K) DARK STRUCTURE OF LOV2 (404-546))===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_18001137}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[2v1a]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Avena_sativa Avena sativa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2V1A OCA].
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:018001137</ref><references group="xtra"/>
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[[Category: Avena sativa]]
[[Category: Avena sativa]]
[[Category: Halavaty, A S.]]
[[Category: Halavaty, A S.]]

Revision as of 01:56, 1 October 2014

N- AND C-TERMINAL HELICES OF OAT LOV2 (404-546) ARE INVOLVED IN LIGHT-INDUCED SIGNAL TRANSDUCTION (ROOM TEMPERATURE (293K) DARK STRUCTURE OF LOV2 (404-546))

2v1a, resolution 1.65Å

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