View source for 5iyu


==AlgE_CIM==
<StructureSection load='5iyu' size='340' side='right'caption='[[5iyu]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5iyu]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_aeruginosa_PAO1 Pseudomonas aeruginosa PAO1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5IYU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5IYU 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]] 2.7&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=LDA:LAURYL+DIMETHYLAMINE-N-OXIDE'>LDA</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=OLC:(2R)-2,3-DIHYDROXYPROPYL+(9Z)-OCTADEC-9-ENOATE'>OLC</scene>, <scene name='pdbligand=PE5:3,6,9,12,15,18,21,24-OCTAOXAHEXACOSAN-1-OL'>PE5</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=5iyu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5iyu OCA], [https://pdbe.org/5iyu PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5iyu RCSB], [https://www.ebi.ac.uk/pdbsum/5iyu PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5iyu ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/ALGE_PSEAE ALGE_PSEAE] Has non-porin-like, channel-forming properties and probably functions as an alginate permeability pore.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The lipid cubic phase (in meso) method is an important approach for generating crystals and high-resolution X-ray structures of integral membrane proteins. However, as a consequence of instability, it can be impossible-using traditional methods-to concentrate certain membrane proteins and complexes to values suitable for in meso crystallization and structure determination. The cubicon method described here exploits the amphiphilic nature of membrane proteins and their natural tendency to partition preferentially into lipid bilayers from aqueous solution. Using several rounds of reconstitution, the protein concentration in the bilayer of the cubic mesophase can be ramped up stepwise from less than a milligram per milliliter to tens of milligrams per milliliter for crystallogenesis. The general applicability of the method is demonstrated with five integral membrane proteins: the beta2-adrenergic G protein-coupled receptor (beta2AR), the peptide transporter (PepTSt), diacylglycerol kinase (DgkA), the alginate transporter (AlgE) and the cystic fibrosis transmembrane conductance regulator (CFTR). In the cases of beta2AR, PepTSt, DgkA and AlgE, an effective 20- to 45-fold concentration was realized, resulting in a protein-laden mesophase that allowed the formation of crystals using the in meso method and structure determination to resolutions ranging from 2.4 A to 3.2 A. In addition to opening up in meso crystallization to a broader range of integral membrane protein targets, the cubicon method should find application in situations that require membrane protein reconstitution in a lipid bilayer at high concentrations. These applications include functional and biophysical characterization studies for ligand screening, drug delivery, antibody production and protein complex formation. A typical cubicon experiment can be completed in 3-5 h.

The cubicon method for concentrating membrane proteins in the cubic mesophase.,Ma P, Weichert D, Aleksandrov LA, Jensen TJ, Riordan JR, Liu X, Kobilka BK, Caffrey M Nat Protoc. 2017 Sep;12(9):1745-1762. doi: 10.1038/nprot.2017.057. Epub 2017 Aug , 3. PMID:28771236<ref>PMID:28771236</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5iyu" style="background-color:#fffaf0;"></div>
== References ==
<references/>
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</StructureSection>
[[Category: Large Structures]]
[[Category: Pseudomonas aeruginosa PAO1]]
[[Category: Ma P]]
[[Category: Weichert D]]