1mhc

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[[Image:1mhc.gif|left|200px]]
 
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{{Structure
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==MODEL OF MHC CLASS I H2-M3 WITH NONAPEPTIDE FROM RAT ND1 REFINED AT 2.3 ANGSTROMS RESOLUTION==
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|PDB= 1mhc |SIZE=350|CAPTION= <scene name='initialview01'>1mhc</scene>, resolution 2.1&Aring;
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<StructureSection load='1mhc' size='340' side='right'caption='[[1mhc]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=FOR:FORMYL+GROUP'>FOR</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>
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<table><tr><td colspan='2'>[[1mhc]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus] and [https://en.wikipedia.org/wiki/Rattus_rattus Rattus rattus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1MHC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1MHC FirstGlance]. <br>
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|ACTIVITY=
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.1&#8491;</td></tr>
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|GENE= H2-M3 B2M ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 Mus musculus])
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FME:N-FORMYLMETHIONINE'>FME</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr>
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|DOMAIN=
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1mhc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1mhc OCA], [https://pdbe.org/1mhc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1mhc RCSB], [https://www.ebi.ac.uk/pdbsum/1mhc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1mhc ProSAT]</span></td></tr>
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|RELATEDENTRY=
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</table>
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1mhc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1mhc OCA], [http://www.ebi.ac.uk/pdbsum/1mhc PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1mhc RCSB]</span>
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== Function ==
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}}
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[https://www.uniprot.org/uniprot/Q31093_MOUSE Q31093_MOUSE]
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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/mh/1mhc_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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/main_output.php?pdb_ID=1mhc 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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H2-M3 is a class Ib MHC molecule of the mouse with a 10(4)-fold preference for binding N-formylated peptides. To elucidate the basis of this unusual specificity, we expressed and crystallized a soluble form of M3 with a formylated nonamer peptide, fMYFINILTL, and determined the structure by X-ray crystallography. M3, refined at 2.1 A resolution, resembles class la MHC molecules in its overall structure, but differs in the peptide-binding groove. The A pocket, which usually accommodates the free N-terminus of a bound peptide, is closed, and the peptide is shifted one residue, such that the P1 side chain is lodged in the B pocket. The formyl group is coordinated by His-9 and a bound water on the floor of the groove.
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'''MODEL OF MHC CLASS I H2-M3 WITH NONAPEPTIDE FROM RAT ND1 REFINED AT 2.3 ANGSTROMS RESOLUTION'''
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Nonclassical binding of formylated peptide in crystal structure of the MHC class Ib molecule H2-M3.,Wang CR, Castano AR, Peterson PA, Slaughter C, Lindahl KF, Deisenhofer J Cell. 1995 Aug 25;82(4):655-64. PMID:7664344<ref>PMID:7664344</ref>
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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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<div class="pdbe-citations 1mhc" style="background-color:#fffaf0;"></div>
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==Overview==
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==See Also==
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H2-M3 is a class Ib MHC molecule of the mouse with a 10(4)-fold preference for binding N-formylated peptides. To elucidate the basis of this unusual specificity, we expressed and crystallized a soluble form of M3 with a formylated nonamer peptide, fMYFINILTL, and determined the structure by X-ray crystallography. M3, refined at 2.1 A resolution, resembles class la MHC molecules in its overall structure, but differs in the peptide-binding groove. The A pocket, which usually accommodates the free N-terminus of a bound peptide, is closed, and the peptide is shifted one residue, such that the P1 side chain is lodged in the B pocket. The formyl group is coordinated by His-9 and a bound water on the floor of the groove.
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*[[Beta-2 microglobulin 3D structures|Beta-2 microglobulin 3D structures]]
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*[[MHC 3D structures|MHC 3D structures]]
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==About this Structure==
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*[[MHC I 3D structures|MHC I 3D structures]]
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1MHC is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus] and [http://en.wikipedia.org/wiki/Rattus_rattus Rattus rattus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1MHC OCA].
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== References ==
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<references/>
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==Reference==
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__TOC__
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Nonclassical binding of formylated peptide in crystal structure of the MHC class Ib molecule H2-M3., Wang CR, Castano AR, Peterson PA, Slaughter C, Lindahl KF, Deisenhofer J, Cell. 1995 Aug 25;82(4):655-64. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/7664344 7664344]
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</StructureSection>
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[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
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[[Category: Protein complex]]
 
[[Category: Rattus rattus]]
[[Category: Rattus rattus]]
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[[Category: Deisenhofer, J.]]
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[[Category: Deisenhofer J]]
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[[Category: Lindahl, K Fischer.]]
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[[Category: Fischer Lindahl K]]
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[[Category: Wang, C R.]]
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[[Category: Wang C-R]]
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[[Category: histocompatibility antigen/peptide]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 22:16:01 2008''
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Current revision

MODEL OF MHC CLASS I H2-M3 WITH NONAPEPTIDE FROM RAT ND1 REFINED AT 2.3 ANGSTROMS RESOLUTION

PDB ID 1mhc

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