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2j4d

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[[Image:2j4d.jpg|left|200px]]
 
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==Cryptochrome 3 from Arabidopsis thaliana==
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The line below this paragraph, containing "STRUCTURE_2j4d", creates the "Structure Box" on the page.
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<StructureSection load='2j4d' size='340' side='right'caption='[[2j4d]], [[Resolution|resolution]] 1.90&Aring;' 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'>[[2j4d]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2J4D OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2J4D 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">X-ray diffraction, [[Resolution|Resolution]] 1.9&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene>, <scene name='pdbligand=MHF:5,10-METHENYL-6,7,8-TRIHYDROFOLIC+ACID'>MHF</scene></td></tr>
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{{STRUCTURE_2j4d| PDB=2j4d | SCENE= }}
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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=2j4d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2j4d OCA], [https://pdbe.org/2j4d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2j4d RCSB], [https://www.ebi.ac.uk/pdbsum/2j4d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2j4d ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CRYD_ARATH CRYD_ARATH] May have a photoreceptor function. Binds ss- and ds-DNA in a sequence non-specific manner. Has a photolyase activity specific for cyclobutane pyrimidine dimers in ssDNA.<ref>PMID:17062752</ref>
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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/j4/2j4d_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=2j4d 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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Cryptochromes are almost ubiquitous blue-light receptors and act in several species as central components of the circadian clock. Despite being evolutionary and structurally related with DNA photolyases, a class of light-driven DNA-repair enzymes, and having similar cofactor compositions, cryptochromes lack DNA-repair activity. Cryptochrome 3 from the plant Arabidopsis thaliana belongs to the DASH-type subfamily. Its crystal structure determined at 1.9 Angstroms resolution shows cryptochrome 3 in a dimeric state with the antenna cofactor 5,10-methenyltetrahydrofolate (MTHF) bound in a distance of 15.2 Angstroms to the U-shaped FAD chromophore. Spectroscopic studies on a mutant where a residue crucial for MTHF-binding, E149, was replaced by site-directed mutagenesis demonstrate that MTHF acts in cryptochrome 3 as a functional antenna for the photoreduction of FAD.
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'''CRYPTOCHROME 3 FROM ARABIDOPSIS THALIANA'''
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Cryptochrome 3 from Arabidopsis thaliana: structural and functional analysis of its complex with a folate light antenna.,Klar T, Pokorny R, Moldt J, Batschauer A, Essen LO J Mol Biol. 2007 Feb 23;366(3):954-64. Epub 2006 Dec 2. PMID:17188299<ref>PMID:17188299</ref>
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==Overview==
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Cryptochromes are almost ubiquitous blue-light receptors and act in several species as central components of the circadian clock. Despite being evolutionary and structurally related with DNA photolyases, a class of light-driven DNA-repair enzymes, and having similar cofactor compositions, cryptochromes lack DNA-repair activity. Cryptochrome 3 from the plant Arabidopsis thaliana belongs to the DASH-type subfamily. Its crystal structure determined at 1.9 Angstroms resolution shows cryptochrome 3 in a dimeric state with the antenna cofactor 5,10-methenyltetrahydrofolate (MTHF) bound in a distance of 15.2 Angstroms to the U-shaped FAD chromophore. Spectroscopic studies on a mutant where a residue crucial for MTHF-binding, E149, was replaced by site-directed mutagenesis demonstrate that MTHF acts in cryptochrome 3 as a functional antenna for the photoreduction of FAD.
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==About this Structure==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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2J4D is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2J4D OCA].
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</div>
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<div class="pdbe-citations 2j4d" style="background-color:#fffaf0;"></div>
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==Reference==
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==See Also==
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Cryptochrome 3 from Arabidopsis thaliana: structural and functional analysis of its complex with a folate light antenna., Klar T, Pokorny R, Moldt J, Batschauer A, Essen LO, J Mol Biol. 2007 Feb 23;366(3):954-64. Epub 2006 Dec 2. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/17188299 17188299]
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*[[Cryptochrome 3D structures|Cryptochrome 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Arabidopsis thaliana]]
[[Category: Arabidopsis thaliana]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Batschauer, A.]]
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[[Category: Batschauer A]]
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[[Category: Essen, L O.]]
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[[Category: Essen L-O]]
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[[Category: Klar, T.]]
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[[Category: Klar T]]
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[[Category: Pokorny, R.]]
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[[Category: Pokorny R]]
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[[Category: Blue-light response]]
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[[Category: Chloroplast]]
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[[Category: Chromophore]]
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[[Category: Cryptochrome]]
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[[Category: Dna-binding protein]]
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[[Category: Fad]]
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[[Category: Flavoprotein]]
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[[Category: Mitochondrion]]
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[[Category: Plastid]]
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[[Category: Transit peptide]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 08:18:51 2008''
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Current revision

Cryptochrome 3 from Arabidopsis thaliana

PDB ID 2j4d

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