1n3y

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[[Image:1n3y.png|left|200px]]
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==Crystal structure of the alpha-X beta2 integrin I domain==
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<StructureSection load='1n3y' size='340' side='right' caption='[[1n3y]], [[Resolution|resolution]] 1.65&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1n3y]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1N3Y OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1N3Y FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ITGAX OR CD11C ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</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=1n3y FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1n3y OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1n3y RCSB], [http://www.ebi.ac.uk/pdbsum/1n3y 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/n3/1n3y_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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The integrin alpha X beta 2 (CD11c/CD18, p150,95) binds ligands through the I domain of the alpha X subunit. Ligands include the complement factor fragment iC3b, a key component in the innate immune defense, which, together with the expression of alpha X beta 2 on dendritic cells and on other leukocytes, suggests a role in the immune response. We now report the structure of the alpha X I domain resolved at 1.65 A by x-ray crystallography. To analyze structural requirements for ligand binding we made a mutation in the alpha X I domain C-terminal helix, which increased the affinity for iC3b approximately 200-fold to 2.4 microM compared with the wild-type domain affinity of approximately 400 microM. Gel permeation chromatography supported a conformational change between the wild-type and mutated domains. Conservation of allosteric regulation in the alpha X I domain points to the functional importance of this phenomenon.
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{{STRUCTURE_1n3y| PDB=1n3y | SCENE= }}
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Structure and allosteric regulation of the alpha X beta 2 integrin I domain.,Vorup-Jensen T, Ostermeier C, Shimaoka M, Hommel U, Springer TA Proc Natl Acad Sci U S A. 2003 Feb 18;100(4):1873-8. Epub 2003 Jan 28. PMID:12554829<ref>PMID:12554829</ref>
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===Crystal structure of the alpha-X beta2 integrin I domain===
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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_12554829}}
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==About this Structure==
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[[1n3y]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1N3Y OCA].
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==See Also==
==See Also==
*[[Integrin|Integrin]]
*[[Integrin|Integrin]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:012554829</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Hommel, U.]]
[[Category: Hommel, U.]]

Revision as of 17:28, 28 September 2014

Crystal structure of the alpha-X beta2 integrin I domain

1n3y, resolution 1.65Å

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