1bqh: Difference between revisions

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New page: left|200px<br /><applet load="1bqh" size="450" color="white" frame="true" align="right" spinBox="true" caption="1bqh, resolution 2.8Å" /> '''MURINE CD8AA ECTODOMA...
 
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[[Image:1bqh.gif|left|200px]]<br /><applet load="1bqh" size="450" color="white" frame="true" align="right" spinBox="true"  
[[Image:1bqh.gif|left|200px]]<br /><applet load="1bqh" size="350" color="white" frame="true" align="right" spinBox="true"  
caption="1bqh, resolution 2.8&Aring;" />
caption="1bqh, resolution 2.8&Aring;" />
'''MURINE CD8AA ECTODOMAIN FRAGMENT IN COMPLEX WITH H-2KB/VSV8'''<br />
'''MURINE CD8AA ECTODOMAIN FRAGMENT IN COMPLEX WITH H-2KB/VSV8'''<br />


==Overview==
==Overview==
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.
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==
==About this Structure==
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].  
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 <scene name='pdbligand=NDG:'>NDG</scene> and <scene name='pdbligand=NAG:'>NAG</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BQH OCA].  


==Reference==
==Reference==
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[[Category: Mus musculus]]
[[Category: Mus musculus]]
[[Category: Protein complex]]
[[Category: Protein complex]]
[[Category: Chang, H.C.]]
[[Category: Chang, H C.]]
[[Category: Kern, P.S.]]
[[Category: Kern, P S.]]
[[Category: Reinherz, E.L.]]
[[Category: Reinherz, E L.]]
[[Category: Wang, J.H.]]
[[Category: Wang, J H.]]
[[Category: NAG]]
[[Category: NAG]]
[[Category: NDG]]
[[Category: NDG]]
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[[Category: t-cell]]
[[Category: t-cell]]


''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Nov 20 11:50:22 2007''
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 11:58:00 2008''