5itc

From Proteopedia

(Difference between revisions)

Current revision

2.2-Angstrom in meso crystal structure of Haloquadratum Walsbyi Bacteriorhodopsin (HwBR) from Styrene Maleic Acid (SMA) Polymer Nanodiscs

Structural highlights

5itc is a 3 chain structure with sequence from Haloquadratum walsbyi DSM 16790. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 1.999Å
Ligands:	, ,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

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.^[1] ^[2] ^[3]

Publication Abstract from PubMed

For some membrane proteins, detergent-mediated solubilization compromises protein stability and functionality, often impairing biophysical and structural analyses. Hence, membrane-protein structure determination is a continuing bottleneck in the field of protein crystallography. Here, as an alternative to approaches mediated by conventional detergents, we report the crystallogenesis of a recombinantly produced membrane protein that never left a lipid bilayer environment. We used styrene-maleic acid (SMA) copolymers to solubilize lipid-embedded proteins into SMA nanodiscs, purified these discs by affinity and size-exclusion chromatography, and transferred proteins into the lipidic cubic phase (LCP) for in meso crystallization. The 2.0-A structure of an alpha-helical seven-transmembrane microbial rhodopsin thus obtained is of high quality and virtually identical to the 2.2-A structure obtained from traditional detergent-based purification and subsequent LCP crystallization.

Crystallogenesis of Membrane Proteins Mediated by Polymer-Bounded Lipid Nanodiscs.,Broecker J, Eger BT, Ernst OP Structure. 2017 Jan 3. pii: S0969-2126(16)30394-X. doi:, 10.1016/j.str.2016.12.004. PMID:28089451^[4]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Sudo Y, Ihara K, Kobayashi S, Suzuki D, Irieda H, Kikukawa T, Kandori H, Homma M. A microbial rhodopsin with a unique retinal composition shows both sensory rhodopsin II and bacteriorhodopsin-like properties. J Biol Chem. 2011 Feb 25;286(8):5967-76. doi: 10.1074/jbc.M110.190058. Epub 2010 , Dec 6. PMID:21135094 doi:http://dx.doi.org/10.1074/jbc.M110.190058
↑ Lobasso S, Lopalco P, Vitale R, Saponetti MS, Capitanio G, Mangini V, Milano F, Trotta M, Corcelli A. The light-activated proton pump Bop I of the archaeon Haloquadratum walsbyi. Photochem Photobiol. 2012 May-Jun;88(3):690-700. doi:, 10.1111/j.1751-1097.2012.01089.x. Epub 2012 Feb 9. PMID:22248212 doi:http://dx.doi.org/10.1111/j.1751-1097.2012.01089.x
↑ Sudo Y, Okazaki A, Ono H, Yagasaki J, Sugo S, Kamiya M, Reissig L, Inoue K, Ihara K, Kandori H, Takagi S, Hayashi S. A blue-shifted light-driven proton pump for neural silencing. J Biol Chem. 2013 Jul 12;288(28):20624-32. doi: 10.1074/jbc.M113.475533. Epub, 2013 May 28. PMID:23720753 doi:http://dx.doi.org/10.1074/jbc.M113.475533
↑ Broecker J, Eger BT, Ernst OP. Crystallogenesis of Membrane Proteins Mediated by Polymer-Bounded Lipid Nanodiscs. Structure. 2017 Jan 3. pii: S0969-2126(16)30394-X. doi:, 10.1016/j.str.2016.12.004. PMID:28089451 doi:http://dx.doi.org/10.1016/j.str.2016.12.004

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5itc"

Categories: Haloquadratum walsbyi DSM 16790 | Large Structures | Broecker J | Eger BT | Ernst OP

@@ Line 1: / Line 1: @@
 ==2.2-Angstrom in meso crystal structure of Haloquadratum Walsbyi Bacteriorhodopsin (HwBR) from Styrene Maleic Acid (SMA) Polymer Nanodiscs==
-<StructureSection load='5itc' size='340' side='right' caption='[[5itc]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
+<StructureSection load='5itc' size='340' side='right'caption='[[5itc]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5itc]] is a 3 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5ITC OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5ITC FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5itc]] 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=5ITC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5ITC FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><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>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.999&#8491;</td></tr>
-<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5ite|5ite]]</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'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5itc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5itc OCA], [http://pdbe.org/5itc PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5itc RCSB], [http://www.ebi.ac.uk/pdbsum/5itc PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5itc ProSAT]</span></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=5itc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5itc OCA], [https://pdbe.org/5itc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5itc RCSB], [https://www.ebi.ac.uk/pdbsum/5itc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5itc ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://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>
+[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>
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 19: / Line 19: @@
 </div>
 <div class="pdbe-citations 5itc" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Bacteriorhodopsin 3D structures|Bacteriorhodopsin 3D structures]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Broecker, J]]
+[[Category: Haloquadratum walsbyi DSM 16790]]
-[[Category: Eger, B T]]
+[[Category: Large Structures]]
-[[Category: Ernst, O P]]
+[[Category: Broecker J]]
-[[Category: Bacteriorhodopsin from haloquadratum walsbyi]]
+[[Category: Eger BT]]
-[[Category: Detergent-free]]
+[[Category: Ernst OP]]
-[[Category: Lipidic cubic phase]]
-[[Category: Membrane protein]]

5itc

From Proteopedia

Current revision

2.2-Angstrom in meso crystal structure of Haloquadratum Walsbyi Bacteriorhodopsin (HwBR) from Styrene Maleic Acid (SMA) Polymer Nanodiscs

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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