This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.


Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.


1bqh

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
(New page: 200px<br /><applet load="1bqh" size="450" color="white" frame="true" align="right" spinBox="true" caption="1bqh, resolution 2.8&Aring;" /> '''MURINE CD8AA ECTODOMA...)
Current revision (05:40, 9 August 2023) (edit) (undo)
 
(19 intermediate revisions not shown.)
Line 1: Line 1:
-
[[Image:1bqh.gif|left|200px]]<br /><applet load="1bqh" size="450" color="white" frame="true" align="right" spinBox="true"
 
-
caption="1bqh, resolution 2.8&Aring;" />
 
-
'''MURINE CD8AA ECTODOMAIN FRAGMENT IN COMPLEX WITH H-2KB/VSV8'''<br />
 
-
==Overview==
+
==MURINE CD8AA ECTODOMAIN FRAGMENT IN COMPLEX WITH H-2KB/VSV8==
-
The crystal structure of the two immunoglobulin variable-like domains of, the murine CD8alphaalpha homodimer complexed to the class I MHC H-2Kb, molecule at 2.8 A resolution shows that CD8alphaalpha binds to the, protruding MHC alpha3 domain loop in an antibody-like manner. Comparison, of mouse CD8alphaalpha/H-2Kb and human CD8alphaalpha/HLA-A2 complexes, reveals shared as well as species-specific recognition features. In both, species, coreceptor function apparently involves the participation of CD8, dimer in a bidentate attachment to an MHC class I molecule in conjunction, with a T cell receptor without discernable conformational alteration of, the peptide or MHC antigen-presenting platform.
+
<StructureSection load='1bqh' size='340' side='right'caption='[[1bqh]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
 +
== Structural highlights ==
 +
<table><tr><td colspan='2'>[[1bqh]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BQH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1BQH 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]] 2.8&#8491;</td></tr>
 +
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><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=1bqh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bqh OCA], [https://pdbe.org/1bqh PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1bqh RCSB], [https://www.ebi.ac.uk/pdbsum/1bqh PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1bqh ProSAT]</span></td></tr>
 +
</table>
 +
== Function ==
 +
[https://www.uniprot.org/uniprot/HA1B_MOUSE HA1B_MOUSE] Involved in the presentation of foreign antigens to the immune system.
 +
== 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/bq/1bqh_consurf.spt"</scriptWhenChecked>
 +
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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=1bqh ConSurf].
 +
<div style="clear:both"></div>
 +
<div style="background-color:#fffaf0;">
 +
== Publication Abstract from PubMed ==
 +
The crystal structure of the two immunoglobulin variable-like domains of the murine CD8alphaalpha homodimer complexed to the class I MHC H-2Kb molecule at 2.8 A resolution shows that CD8alphaalpha binds to the protruding MHC alpha3 domain loop in an antibody-like manner. Comparison of mouse CD8alphaalpha/H-2Kb and human CD8alphaalpha/HLA-A2 complexes reveals shared as well as species-specific recognition features. In both species, coreceptor function apparently involves the participation of CD8 dimer in a bidentate attachment to an MHC class I molecule in conjunction with a T cell receptor without discernable conformational alteration of the peptide or MHC antigen-presenting platform.
-
==About this Structure==
+
Structural basis of CD8 coreceptor function revealed by crystallographic analysis of a murine CD8alphaalpha ectodomain fragment in complex with H-2Kb.,Kern PS, Teng MK, Smolyar A, Liu JH, Liu J, Hussey RE, Spoerl R, Chang HC, Reinherz EL, Wang JH Immunity. 1998 Oct;9(4):519-30. PMID:9806638<ref>PMID:9806638</ref>
-
1BQH is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus] with NDG and NAG as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1BQH OCA].
+
-
==Reference==
+
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-
Structural basis of CD8 coreceptor function revealed by crystallographic analysis of a murine CD8alphaalpha ectodomain fragment in complex with H-2Kb., Kern PS, Teng MK, Smolyar A, Liu JH, Liu J, Hussey RE, Spoerl R, Chang HC, Reinherz EL, Wang JH, Immunity. 1998 Oct;9(4):519-30. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=9806638 9806638]
+
</div>
-
[[Category: Mus musculus]]
+
<div class="pdbe-citations 1bqh" style="background-color:#fffaf0;"></div>
-
[[Category: Protein complex]]
+
-
[[Category: Chang, H.C.]]
+
-
[[Category: Kern, P.S.]]
+
-
[[Category: Reinherz, E.L.]]
+
-
[[Category: Wang, J.H.]]
+
-
[[Category: NAG]]
+
-
[[Category: NDG]]
+
-
[[Category: antigen]]
+
-
[[Category: complex]]
+
-
[[Category: coreceptor]]
+
-
[[Category: glycoprotein]]
+
-
[[Category: immunology]]
+
-
[[Category: signal]]
+
-
[[Category: t-cell]]
+
-
''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Nov 20 11:50:22 2007''
+
==See Also==
 +
*[[Beta-2 microglobulin 3D structures|Beta-2 microglobulin 3D structures]]
 +
*[[CD8 3D structures|CD8 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: Chang HC]]
 +
[[Category: Kern PS]]
 +
[[Category: Reinherz EL]]
 +
[[Category: Wang JH]]

Current revision

MURINE CD8AA ECTODOMAIN FRAGMENT IN COMPLEX WITH H-2KB/VSV8

PDB ID 1bqh

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Personal tools