View source for 7ytb


==Crystal structure of Kin4B8==
<StructureSection load='7ytb' size='340' side='right'caption='[[7ytb]], [[Resolution|resolution]] 3.00&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7ytb]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Bdellovibrio Bdellovibrio]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7YTB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7YTB 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]] 3&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=OLC:(2R)-2,3-DIHYDROXYPROPYL+(9Z)-OCTADEC-9-ENOATE'>OLC</scene>, <scene name='pdbligand=RET:RETINAL'>RET</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=7ytb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7ytb OCA], [https://pdbe.org/7ytb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7ytb RCSB], [https://www.ebi.ac.uk/pdbsum/7ytb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7ytb ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/A0A977XLG0_9BACT A0A977XLG0_9BACT] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Energy transfer from light-harvesting ketocarotenoids to the light-driven proton pump xanthorhodopsins has been previously demonstrated in two unique cases: an extreme halophilic bacterium(1) and a terrestrial cyanobacterium(2). Attempts to find carotenoids that bind and transfer energy to abundant rhodopsin proton pumps(3) from marine photoheterotrophs have thus far failed(4-6). Here we detected light energy transfer from the widespread hydroxylated carotenoids zeaxanthin and lutein to the retinal moiety of xanthorhodopsins and proteorhodopsins using functional metagenomics combined with chromophore extraction from the environment. The light-harvesting carotenoids transfer up to 42% of the harvested energy in the violet- or blue-light range to the green-light absorbing retinal chromophore. Our data suggest that these antennas may have a substantial effect on rhodopsin phototrophy in the world's lakes, seas and oceans. However, the functional implications of our findings are yet to be discovered.

Phototrophy by antenna-containing rhodopsin pumps in aquatic environments.,Chazan A, Das I, Fujiwara T, Murakoshi S, Rozenberg A, Molina-Marquez A, Sano FK, Tanaka T, Gomez-Villegas P, Larom S, Pushkarev A, Malakar P, Hasegawa M, Tsukamoto Y, Ishizuka T, Konno M, Nagata T, Mizuno Y, Katayama K, Abe-Yoshizumi R, Ruhman S, Inoue K, Kandori H, Leon R, Shihoya W, Yoshizawa S, Sheves M, Nureki O, Beja O Nature. 2023 Mar;615(7952):535-540. doi: 10.1038/s41586-023-05774-6. Epub 2023 , Mar 1. PMID:36859551<ref>PMID:36859551</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7ytb" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Bdellovibrio]]
[[Category: Large Structures]]
[[Category: Beja O]]
[[Category: Chazan A]]
[[Category: Murakoshi S]]
[[Category: Nureki O]]
[[Category: Shihoya W]]