3pou

From Proteopedia

(Difference between revisions)

Current revision

Crystal structure of E.coli OmpF porin in lipidic cubic phase: space group H32, large unit cell

Structural highlights

3pou is a 1 chain structure with sequence from Escherichia coli BL21. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.8Å
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

OMPF_ECOLI Forms pores that allow passive diffusion of small molecules across the outer membrane. It is also a receptor for the bacteriophage T2.^[1]

Publication Abstract from PubMed

Outer membrane protein F, a major component of the Escherichia coli outer membrane, was crystallized for the first time in lipidic mesophase of monoolein in novel space groups, P1 and H32. Due to ease of its purification and crystallization OmpF can be used as a benchmark protein for establishing membrane protein crystallization in meso, as a "membrane lyzozyme". The packing of porin trimers in the crystals of space group H32 is similar to natural outer membranes, providing the first high-resolution insight into the close to native packing of OmpF. Surprisingly, interaction between trimers is mediated exclusively by lipids, without direct protein-protein contacts. Multiple ordered lipids are observed and many of them occupy identical positions independently of the space group, identifying preferential interaction sites of lipid acyl chains. Presence of ordered aliphatic chains close to a positively charged area on the porin surface suggests a position for a lipopolysaccharide binding site on the surface of the major E. coli porins.

Structure of Escherichia coli OmpF porin from lipidic mesophase.,Efremov RG, Sazanov LA J Struct Biol. 2012 Jun;178(3):311-8. Epub 2012 Mar 29. PMID:22484237^[2]

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

References

↑ Duval V, Nicoloff H, Levy SB. Combined inactivation of lon and ycgE decreases multidrug susceptibility by reducing the amount of OmpF porin in Escherichia coli. Antimicrob Agents Chemother. 2009 Nov;53(11):4944-8. doi: 10.1128/AAC.00787-09., Epub 2009 Aug 31. PMID:19721064 doi:10.1128/AAC.00787-09
↑ Efremov RG, Sazanov LA. Structure of Escherichia coli OmpF porin from lipidic mesophase. J Struct Biol. 2012 Jun;178(3):311-8. Epub 2012 Mar 29. PMID:22484237 doi:10.1016/j.jsb.2012.03.005

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/3pou"

Categories: Escherichia coli BL21 | Large Structures | Efremov RG | Sazanov LA

@@ Line 1: / Line 1: @@
 ==Crystal structure of E.coli OmpF porin in lipidic cubic phase: space group H32, large unit cell==
-<StructureSection load='3pou' size='340' side='right' caption='[[3pou]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
+<StructureSection load='3pou' size='340' side='right'caption='[[3pou]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[3pou]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3POU OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3POU FirstGlance]. <br>
+<table><tr><td colspan='2'>[[3pou]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_BL21 Escherichia coli BL21]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3POU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3POU FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=OLC:(2R)-2,3-DIHYDROXYPROPYL+(9Z)-OCTADEC-9-ENOATE'>OLC</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]] 2.8&#8491;</td></tr>
-<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3poq|3poq]], [[2pox|2pox]]</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></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=3pou FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3pou OCA], [http://pdbe.org/3pou PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3pou RCSB], [http://www.ebi.ac.uk/pdbsum/3pou PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3pou 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=3pou FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3pou OCA], [https://pdbe.org/3pou PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3pou RCSB], [https://www.ebi.ac.uk/pdbsum/3pou PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3pou ProSAT]</span></td></tr>
 </table>
+== Function ==
+[https://www.uniprot.org/uniprot/OMPF_ECOLI OMPF_ECOLI] Forms pores that allow passive diffusion of small molecules across the outer membrane. It is also a receptor for the bacteriophage T2.<ref>PMID:19721064</ref>
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 19: / Line 21: @@
 ==See Also==
-*[[Cytochrome P450|Cytochrome P450]]
+*[[Cytochrome P450 3D structures|Cytochrome P450 3D structures]]
-*[[Porin|Porin]]
+*[[Porin 3D structures|Porin 3D structures]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Escherichia coli]]
+[[Category: Escherichia coli BL21]]
-[[Category: Efremov, R G]]
+[[Category: Large Structures]]
-[[Category: Sazanov, L A]]
+[[Category: Efremov RG]]
-[[Category: Beta barrel]]
+[[Category: Sazanov LA]]
-[[Category: Membrane protein]]
-[[Category: Pore]]
-[[Category: Solute transport]]

3pou

From Proteopedia

Current revision

Crystal structure of E.coli OmpF porin in lipidic cubic phase: space group H32, large unit cell

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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