1sy6
From Proteopedia
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| - | [[Image:1sy6.gif|left|200px]] | + | [[Image:1sy6.gif|left|200px]] |
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| - | '''Crystal Structure of CD3gammaepsilon Heterodimer in Complex with OKT3 Fab Fragment''' | + | {{Structure |
| + | |PDB= 1sy6 |SIZE=350|CAPTION= <scene name='initialview01'>1sy6</scene>, resolution 2.1Å | ||
| + | |SITE= | ||
| + | |LIGAND= | ||
| + | |ACTIVITY= | ||
| + | |GENE= CD3G, T3G, CD3E, T3E ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | ||
| + | }} | ||
| + | |||
| + | '''Crystal Structure of CD3gammaepsilon Heterodimer in Complex with OKT3 Fab Fragment''' | ||
| + | |||
==Overview== | ==Overview== | ||
The CD3 epsilon gamma heterodimer is essential for expression and function of the T cell receptor. The crystal structure of the human CD3 epsilon gamma heterodimer is described to 2.1-A resolution complexed with OKT3, a therapeutic mAb that not only activates and tolerizes mature T cells but also induces regulatory T cells. The mode of CD3 epsilon gamma dimerization provides a general structural basis for CD3 assembly and maps candidate T cell antigen receptor docking sites, including a duplicated linear region rich in acidic residues that is unique to human CD3 epsilon. OKT3 binds to an atypically small area of CD3 epsilon and has a low affinity for the isolated CD3 epsilon gamma heterodimer. The structure of the OKT3/CD3 epsilon gamma complex has implications for T cell signaling and therapeutic design. | The CD3 epsilon gamma heterodimer is essential for expression and function of the T cell receptor. The crystal structure of the human CD3 epsilon gamma heterodimer is described to 2.1-A resolution complexed with OKT3, a therapeutic mAb that not only activates and tolerizes mature T cells but also induces regulatory T cells. The mode of CD3 epsilon gamma dimerization provides a general structural basis for CD3 assembly and maps candidate T cell antigen receptor docking sites, including a duplicated linear region rich in acidic residues that is unique to human CD3 epsilon. OKT3 binds to an atypically small area of CD3 epsilon and has a low affinity for the isolated CD3 epsilon gamma heterodimer. The structure of the OKT3/CD3 epsilon gamma complex has implications for T cell signaling and therapeutic design. | ||
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| - | ==Disease== | ||
| - | Known disease associated with this structure: Immunodeficiency due to defect in CD3-epsilon OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=186830 186830]] | ||
==About this Structure== | ==About this Structure== | ||
| - | 1SY6 is a [ | + | 1SY6 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SY6 OCA]. |
==Reference== | ==Reference== | ||
| - | Crystal structure of the human T cell receptor CD3 epsilon gamma heterodimer complexed to the therapeutic mAb OKT3., Kjer-Nielsen L, Dunstone MA, Kostenko L, Ely LK, Beddoe T, Mifsud NA, Purcell AW, Brooks AG, McCluskey J, Rossjohn J, Proc Natl Acad Sci U S A. 2004 May 18;101(20):7675-80. Epub 2004 May 10. PMID:[http:// | + | Crystal structure of the human T cell receptor CD3 epsilon gamma heterodimer complexed to the therapeutic mAb OKT3., Kjer-Nielsen L, Dunstone MA, Kostenko L, Ely LK, Beddoe T, Mifsud NA, Purcell AW, Brooks AG, McCluskey J, Rossjohn J, Proc Natl Acad Sci U S A. 2004 May 18;101(20):7675-80. Epub 2004 May 10. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15136729 15136729] |
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Mus musculus]] | [[Category: Mus musculus]] | ||
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[[Category: okt3 fab]] | [[Category: okt3 fab]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 14:11:10 2008'' |
Revision as of 12:11, 20 March 2008
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| , resolution 2.1Å | |||||||
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| Gene: | CD3G, T3G, CD3E, T3E (Homo sapiens) | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal Structure of CD3gammaepsilon Heterodimer in Complex with OKT3 Fab Fragment
Overview
The CD3 epsilon gamma heterodimer is essential for expression and function of the T cell receptor. The crystal structure of the human CD3 epsilon gamma heterodimer is described to 2.1-A resolution complexed with OKT3, a therapeutic mAb that not only activates and tolerizes mature T cells but also induces regulatory T cells. The mode of CD3 epsilon gamma dimerization provides a general structural basis for CD3 assembly and maps candidate T cell antigen receptor docking sites, including a duplicated linear region rich in acidic residues that is unique to human CD3 epsilon. OKT3 binds to an atypically small area of CD3 epsilon and has a low affinity for the isolated CD3 epsilon gamma heterodimer. The structure of the OKT3/CD3 epsilon gamma complex has implications for T cell signaling and therapeutic design.
About this Structure
1SY6 is a Single protein structure of sequence from Homo sapiens and Mus musculus. Full crystallographic information is available from OCA.
Reference
Crystal structure of the human T cell receptor CD3 epsilon gamma heterodimer complexed to the therapeutic mAb OKT3., Kjer-Nielsen L, Dunstone MA, Kostenko L, Ely LK, Beddoe T, Mifsud NA, Purcell AW, Brooks AG, McCluskey J, Rossjohn J, Proc Natl Acad Sci U S A. 2004 May 18;101(20):7675-80. Epub 2004 May 10. PMID:15136729
Page seeded by OCA on Thu Mar 20 14:11:10 2008
