1by5

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[[Image:1by5.png|left|200px]]
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==FHUA FROM E. COLI, WITH ITS LIGAND FERRICHROME==
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<StructureSection load='1by5' size='340' side='right' caption='[[1by5]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1by5]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli] and [http://en.wikipedia.org/wiki/Ustilago_sphaerogena Ustilago sphaerogena]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BY5 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1BY5 FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=OES:N-OCTYL-2-HYDROXYETHYL+SULFOXIDE'>OES</scene><br>
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<tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=AHO:N-ACETYL-N-HYDROXY-L-ORNITHINE'>AHO</scene></td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1by5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1by5 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1by5 RCSB], [http://www.ebi.ac.uk/pdbsum/1by5 PDBsum]</span></td></tr>
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<table>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/by/1by5_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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FhuA protein facilitates ligand-gated transport of ferrichrome-bound iron across Escherichia coli outer membranes. X-ray analysis at 2.7 A resolution reveals two distinct conformations in the presence and absence of ferrichrome. The monomeric protein consists of a hollow, 22-stranded, antiparallel beta barrel (residues 160-714), which is obstructed by a plug (residues 19-159). The binding site of ferrichrome, an aromatic pocket near the cell surface, undergoes minor changes upon association with the ligand. These are propagated and amplified across the plug, eventually resulting in substantially different protein conformations at the periplasmic face. Our findings reveal the mechanism of signal transmission and suggest how the energy-transducing TonB complex senses ligand binding.
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{{STRUCTURE_1by5| PDB=1by5 | SCENE= }}
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Transmembrane signaling across the ligand-gated FhuA receptor: crystal structures of free and ferrichrome-bound states reveal allosteric changes.,Locher KP, Rees B, Koebnik R, Mitschler A, Moulinier L, Rosenbusch JP, Moras D Cell. 1998 Dec 11;95(6):771-8. PMID:9865695<ref>PMID:9865695</ref>
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===FHUA FROM E. COLI, WITH ITS LIGAND FERRICHROME===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_9865695}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[1by5]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli] and [http://en.wikipedia.org/wiki/Ustilago_sphaerogena Ustilago sphaerogena]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BY5 OCA].
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:009865695</ref><references group="xtra"/>
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[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
[[Category: Ustilago sphaerogena]]
[[Category: Ustilago sphaerogena]]

Revision as of 09:47, 13 August 2014

FHUA FROM E. COLI, WITH ITS LIGAND FERRICHROME

1by5, resolution 2.60Å

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