5ui2
From Proteopedia
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==CRYSTAL STRUCTURE OF ORANGE CAROTENOID PROTEIN== | ==CRYSTAL STRUCTURE OF ORANGE CAROTENOID PROTEIN== | ||
| - | <StructureSection load='5ui2' size='340' side='right' caption='[[5ui2]], [[Resolution|resolution]] 2.10Å' scene=''> | + | <StructureSection load='5ui2' size='340' side='right'caption='[[5ui2]], [[Resolution|resolution]] 2.10Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[5ui2]] is a 2 chain structure with sequence from [ | + | <table><tr><td colspan='2'>[[5ui2]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Limnospira_maxima Limnospira maxima]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1m98 1m98]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5UI2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5UI2 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=EQ3:(3R)-3-HYDROXY-BETA,BETA-CAROTEN-4-ONE'>EQ3</scene>, <scene name='pdbligand= | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.1Å</td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=EQ3:(3R)-3-HYDROXY-BETA,BETA-CAROTEN-4-ONE'>EQ3</scene>, <scene name='pdbligand=FRU:FRUCTOSE'>FRU</scene>, <scene name='pdbligand=GLC:ALPHA-D-GLUCOSE'>GLC</scene>, <scene name='pdbligand=PRD_900003:sucrose'>PRD_900003</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=5ui2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ui2 OCA], [https://pdbe.org/5ui2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5ui2 RCSB], [https://www.ebi.ac.uk/pdbsum/5ui2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5ui2 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
| - | [ | + | [https://www.uniprot.org/uniprot/OCP_LIMMA OCP_LIMMA] Acts as a blue-light photoreceptor and photo-protectant. Essential for inhibiting damaged induced by excess blue-green light via a process known as non-photochemical quenching (NPQ). Binding carotenoids improves OCP's intrinsic photoprotectant activity by broadening its absorption spectrum and facilitating the dissipation of absorbed energy (PubMed:15751975). In the dark or dim light the stable inactive form (OCP-O) is orange, upon illumination with blue-green light it converts to a metastable active red form (OCP-R), inducing energy dissipation, quenching cellular fluorescence via NPQ (By similarity).[UniProtKB:P74102]<ref>PMID:15751975</ref> |
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| - | [[Category: | + | [[Category: Large Structures]] |
| - | [[Category: KERFELD | + | [[Category: Limnospira maxima]] |
| - | [[Category: KROGMANN | + | [[Category: KERFELD CA]] |
| - | [[Category: SAWAYA | + | [[Category: KROGMANN D]] |
| - | [[Category: VISHNU | + | [[Category: SAWAYA MR]] |
| - | [[Category: YEATES | + | [[Category: VISHNU B]] |
| - | + | [[Category: YEATES TO]] | |
Current revision
CRYSTAL STRUCTURE OF ORANGE CAROTENOID PROTEIN
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