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< | ==The light state structure of the blue-light photoreceptor Aureochrome1 LOV== | ||
<StructureSection load='3ulf' size='340' side='right'caption='[[3ulf]], [[Resolution|resolution]] 2.90Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[3ulf]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Vaucheria_frigida Vaucheria frigida]. The March 2015 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Phototropin'' by David Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2015_3 10.2210/rcsb_pdb/mom_2015_3]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ULF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3ULF FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.9Å</td></tr> | |||
-- | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FMN:FLAVIN+MONONUCLEOTIDE'>FMN</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</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=3ulf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ulf OCA], [https://pdbe.org/3ulf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3ulf RCSB], [https://www.ebi.ac.uk/pdbsum/3ulf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3ulf ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/A8QW55_VAUFR A8QW55_VAUFR] | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Aureochrome1, a signaling photoreceptor from a eukaryotic photosynthetic stramenopile, confers blue-light-regulated DNA binding on the organism. Its topology, in which a C-terminal LOV sensor domain is linked to an N-terminal DNA-binding bZIP effector domain, contrasts with the reverse sensor-effector topology in most other known LOV-photoreceptors. How, then, is signal transmitted in Aureochrome1? The dark- and light-state crystal structures of Aureochrome1 LOV domain (AuLOV) show that its helical N- and C-terminal flanking regions are packed against the external surface of the core beta sheet, opposite to the FMN chromophore on the internal surface. Light-induced conformational changes occur in the quaternary structure of the AuLOV dimer and in Phe298 of the Hbeta strand in the core. The properties of AuLOV extend the applicability of LOV domains as versatile design modules that permit fusion to effector domains via either the N- or C-termini to confer blue-light sensitivity. | |||
Crystal structures of Aureochrome1 LOV suggest new design strategies for optogenetics.,Mitra D, Yang X, Moffat K Structure. 2012 Apr 4;20(4):698-706. doi: 10.1016/j.str.2012.02.016. Epub 2012, Apr 3. PMID:22483116<ref>PMID:22483116</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
== | </div> | ||
[[ | <div class="pdbe-citations 3ulf" style="background-color:#fffaf0;"></div> | ||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Phototropin]] | |||
[[Category: RCSB PDB Molecule of the Month]] | |||
[[Category: Vaucheria frigida]] | [[Category: Vaucheria frigida]] | ||
[[Category: Mitra | [[Category: Mitra D]] | ||
[[Category: Moffat | [[Category: Moffat K]] | ||
[[Category: Yang | [[Category: Yang X]] | ||
Latest revision as of 13:32, 6 November 2024
The light state structure of the blue-light photoreceptor Aureochrome1 LOVThe light state structure of the blue-light photoreceptor Aureochrome1 LOV
Structural highlights
FunctionPublication Abstract from PubMedAureochrome1, a signaling photoreceptor from a eukaryotic photosynthetic stramenopile, confers blue-light-regulated DNA binding on the organism. Its topology, in which a C-terminal LOV sensor domain is linked to an N-terminal DNA-binding bZIP effector domain, contrasts with the reverse sensor-effector topology in most other known LOV-photoreceptors. How, then, is signal transmitted in Aureochrome1? The dark- and light-state crystal structures of Aureochrome1 LOV domain (AuLOV) show that its helical N- and C-terminal flanking regions are packed against the external surface of the core beta sheet, opposite to the FMN chromophore on the internal surface. Light-induced conformational changes occur in the quaternary structure of the AuLOV dimer and in Phe298 of the Hbeta strand in the core. The properties of AuLOV extend the applicability of LOV domains as versatile design modules that permit fusion to effector domains via either the N- or C-termini to confer blue-light sensitivity. Crystal structures of Aureochrome1 LOV suggest new design strategies for optogenetics.,Mitra D, Yang X, Moffat K Structure. 2012 Apr 4;20(4):698-706. doi: 10.1016/j.str.2012.02.016. Epub 2012, Apr 3. PMID:22483116[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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