View source for 5kkh


==2.1-Angstrom In situ Mylar structure of bacteriorhodopsin from Haloquadratum walsbyi (HwBR) at 100 K==
<StructureSection load='5kkh' size='340' side='right'caption='[[5kkh]], [[Resolution|resolution]] 2.12&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5kkh]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Haloquadratum_walsbyi_DSM_16790 Haloquadratum walsbyi DSM 16790]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5KKH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5KKH 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]] 2.125&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=OLB:(2S)-2,3-DIHYDROXYPROPYL+(9Z)-OCTADEC-9-ENOATE'>OLB</scene>, <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=5kkh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5kkh OCA], [https://pdbe.org/5kkh PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5kkh RCSB], [https://www.ebi.ac.uk/pdbsum/5kkh PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5kkh ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/BACR1_HALWD BACR1_HALWD] Light-driven proton pump. The chromophore contains 78% all-trans- and 22% 13-cis-retinal in the dark and 90% all-trans- and 10% 13-cis-retinal upon illumination with >500 nm light.<ref>PMID:21135094</ref> <ref>PMID:22248212</ref> <ref>PMID:23720753</ref> 
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== Publication Abstract from PubMed ==
In recent years, in situ data collection has been a major focus of progress in protein crystallography. Here, we introduce the Mylar in situ method using Mylar-based sandwich plates that are inexpensive, easy to make and handle, and show significantly less background scattering than other setups. A variety of cognate holders for patches of Mylar in situ sandwich films corresponding to one or more wells makes the method robust and versatile, allows for storage and shipping of entire wells, and enables automated crystal imaging, screening, and goniometer-based X-ray diffraction data-collection at room temperature and under cryogenic conditions for soluble and membrane-protein crystals grown in or transferred to these plates. We validated the Mylar in situ method using crystals of the water-soluble proteins hen egg-white lysozyme and sperm whale myoglobin as well as the 7-transmembrane protein bacteriorhodopsin from Haloquadratum walsbyi. In conjunction with current developments at synchrotrons, this approach promises high-resolution structural studies of membrane proteins to become faster and more routine.

A Versatile System for High-Throughput In Situ X-ray Screening and Data Collection of Soluble and Membrane-Protein Crystals.,Broecker J, Klingel V, Ou WL, Balo AR, Kissick DJ, Ogata CM, Kuo A, Ernst OP Cryst Growth Des. 2016 Nov 2;16(11):6318-6326. doi: 10.1021/acs.cgd.6b00950. Epub, 2016 Oct 3. PMID:28261000<ref>PMID:28261000</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 5kkh" style="background-color:#fffaf0;"></div>

==See Also==
*[[Bacteriorhodopsin 3D structures|Bacteriorhodopsin 3D structures]]
== References ==
<references/>
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</StructureSection>
[[Category: Haloquadratum walsbyi DSM 16790]]
[[Category: Large Structures]]
[[Category: Broecker J]]
[[Category: Ernst OP]]