2b5i: Difference between revisions
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[[Image:2b5i.gif|left|200px]] | [[Image:2b5i.gif|left|200px]] | ||
'''cytokine receptor complex''' | {{Structure | ||
|PDB= 2b5i |SIZE=350|CAPTION= <scene name='initialview01'>2b5i</scene>, resolution 2.30Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene> | |||
|ACTIVITY= | |||
|GENE= IL2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]), IL2RB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]), IL2RG ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]), IL2RA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | |||
}} | |||
'''cytokine receptor complex''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
2B5I is a [ | 2B5I is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2B5I OCA]. | ||
==Reference== | ==Reference== | ||
Structure of the quaternary complex of interleukin-2 with its alpha, beta, and gammac receptors., Wang X, Rickert M, Garcia KC, Science. 2005 Nov 18;310(5751):1159-63. PMID:[http:// | Structure of the quaternary complex of interleukin-2 with its alpha, beta, and gammac receptors., Wang X, Rickert M, Garcia KC, Science. 2005 Nov 18;310(5751):1159-63. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16293754 16293754] | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
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[[Category: four-helix bundle]] | [[Category: four-helix bundle]] | ||
''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 15:57:49 2008'' | ||
Revision as of 13:57, 20 March 2008
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| 2b5i, resolution 2.30Å | |||||||||||||
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| Ligands: | NAG | ||||||||||||
| Gene: | IL2 (Homo sapiens), IL2RB (Homo sapiens), IL2RG (Homo sapiens), IL2RA (Homo sapiens) | ||||||||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||||||||
cytokine receptor complex
Overview
Interleukin-2 (IL-2) is an immunoregulatory cytokine that acts through a quaternary receptor signaling complex containing alpha (IL-2Ralpha), beta (IL-2Rbeta), and common gamma chain (gc) receptors. In the structure of the quaternary ectodomain complex as visualized at a resolution of 2.3 angstroms, the binding of IL-2Ralpha to IL-2 stabilizes a secondary binding site for presentation to IL-2Rbeta. gammac is then recruited to the composite surface formed by the IL-2/IL-2Rbeta complex. Consistent with its role as a shared receptor for IL-4, IL-7, IL-9, IL-15, and IL-21, gammac forms degenerate contacts with IL-2. The structure of gammac provides a rationale for loss-of-function mutations found in patients with X-linked severe combined immunodeficiency diseases (X-SCID). This complex structure provides a framework for other gammac-dependent cytokine-receptor interactions and for the engineering of improved IL-2 therapeutics.
Disease
Known diseases associated with this structure: Combined immunodeficiency, X-linked, moderate OMIM:[308380], Diabetes mellitus, insulin-dependent, susceptibility to, 10 OMIM:[147730], Interleukin-2 receptor, alpha chain, deficiency of OMIM:[147730], Severe combined immunodeficiency due to IL2 deficiency OMIM:[147680], Severe combined immunodeficiency, X-linked OMIM:[308380]
About this Structure
2B5I is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Structure of the quaternary complex of interleukin-2 with its alpha, beta, and gammac receptors., Wang X, Rickert M, Garcia KC, Science. 2005 Nov 18;310(5751):1159-63. PMID:16293754
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