1mhc

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
(New page: 200px<br /><applet load="1mhc" size="450" color="white" frame="true" align="right" spinBox="true" caption="1mhc, resolution 2.1&Aring;" /> '''MODEL OF MHC CLASS I ...)
Current revision (00:15, 21 November 2024) (edit) (undo)
 
(16 intermediate revisions not shown.)
Line 1: Line 1:
-
[[Image:1mhc.gif|left|200px]]<br /><applet load="1mhc" size="450" color="white" frame="true" align="right" spinBox="true"
 
-
caption="1mhc, resolution 2.1&Aring;" />
 
-
'''MODEL OF MHC CLASS I H2-M3 WITH NONAPEPTIDE FROM RAT ND1 REFINED AT 2.3 ANGSTROMS RESOLUTION'''<br />
 
-
==Overview==
+
==MODEL OF MHC CLASS I H2-M3 WITH NONAPEPTIDE FROM RAT ND1 REFINED AT 2.3 ANGSTROMS RESOLUTION==
-
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.
+
<StructureSection load='1mhc' size='340' side='right'caption='[[1mhc]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
 +
== Structural highlights ==
 +
<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>
 +
</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>
 +
<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>
 +
<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>
 +
</table>
 +
== Function ==
 +
[https://www.uniprot.org/uniprot/Q31093_MOUSE Q31093_MOUSE]
 +
== Evolutionary Conservation ==
 +
[[Image:Consurf_key_small.gif|200px|right]]
 +
Check<jmol>
 +
<jmolCheckbox>
 +
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/mh/1mhc_consurf.spt"</scriptWhenChecked>
 +
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
 +
<text>to colour the structure by Evolutionary Conservation</text>
 +
</jmolCheckbox>
 +
</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].
 +
<div style="clear:both"></div>
 +
<div style="background-color:#fffaf0;">
 +
== Publication Abstract from PubMed ==
 +
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.
-
==About this Structure==
+
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>
-
1MHC is a [http://en.wikipedia.org/wiki/Protein_complex 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] with NAG and FOR as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1MHC OCA].
+
-
==Reference==
+
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-
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://ispc.weizmann.ac.il//pmbin/getpm?pmid=7664344 7664344]
+
</div>
 +
<div class="pdbe-citations 1mhc" style="background-color:#fffaf0;"></div>
 +
 
 +
==See Also==
 +
*[[Beta-2 microglobulin 3D structures|Beta-2 microglobulin 3D structures]]
 +
*[[MHC 3D structures|MHC 3D structures]]
 +
*[[MHC I 3D structures|MHC I 3D structures]]
 +
== References ==
 +
<references/>
 +
__TOC__
 +
</StructureSection>
 +
[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
-
[[Category: Protein complex]]
 
[[Category: Rattus rattus]]
[[Category: Rattus rattus]]
-
[[Category: Deisenhofer, J.]]
+
[[Category: Deisenhofer J]]
-
[[Category: Lindahl, K.Fischer.]]
+
[[Category: Fischer Lindahl K]]
-
[[Category: Wang, C.R.]]
+
[[Category: Wang C-R]]
-
[[Category: FOR]]
+
-
[[Category: NAG]]
+
-
[[Category: histocompatibility antigen/peptide]]
+
-
 
+
-
''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Nov 20 21:25:11 2007''
+

Current revision

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

PDB ID 1mhc

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Personal tools