2aw2: Difference between revisions
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[[Image:2aw2.gif|left|200px]] | [[Image:2aw2.gif|left|200px]] | ||
'''Crystal structure of the human BTLA-HVEM complex''' | {{Structure | ||
|PDB= 2aw2 |SIZE=350|CAPTION= <scene name='initialview01'>2aw2</scene>, resolution 2.80Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=NI:NICKEL (II) ION'>NI</scene> | |||
|ACTIVITY= | |||
|GENE= BTLA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]), TNFRSF14, HVEA, HVEM ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | |||
}} | |||
'''Crystal structure of the human BTLA-HVEM complex''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
2AW2 is a [ | 2AW2 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=2AW2 OCA]. | ||
==Reference== | ==Reference== | ||
Attenuating lymphocyte activity: the crystal structure of the BTLA-HVEM complex., Compaan DM, Gonzalez LC, Tom I, Loyet KM, Eaton D, Hymowitz SG, J Biol Chem. 2005 Nov 25;280(47):39553-61. Epub 2005 Sep 16. PMID:[http:// | Attenuating lymphocyte activity: the crystal structure of the BTLA-HVEM complex., Compaan DM, Gonzalez LC, Tom I, Loyet KM, Eaton D, Hymowitz SG, J Biol Chem. 2005 Nov 25;280(47):39553-61. Epub 2005 Sep 16. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16169851 16169851] | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
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[[Category: tnfrsf]] | [[Category: tnfrsf]] | ||
''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 15:54:29 2008'' | ||
Revision as of 13:54, 20 March 2008
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| 2aw2, resolution 2.80Å | |||||||||||||
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| Ligands: | NI | ||||||||||||
| Gene: | BTLA (Homo sapiens), TNFRSF14, HVEA, HVEM (Homo sapiens) | ||||||||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||||||||
Crystal structure of the human BTLA-HVEM complex
Overview
Five CD28-like proteins exert positive or negative effects on immune cells. Only four of these five receptors interact with members of the B7 family. The exception is BTLA (B and T lymphocyte attenuator), which instead interacts with the tumor necrosis factor receptor superfamily member HVEM (herpes virus entry mediator). To better understand this interaction, we determined the 2.8-A crystal structure of the BTLA-HVEM complex. This structure shows that BTLA binds the N-terminal cysteine-rich domain of HVEM and employs a unique binding surface compared with other CD28-like receptors. Moreover, the structure shows that BTLA recognizes the same surface on HVEM as gD (herpes virus glycoprotein D) and utilizes a similar binding motif. Light scattering analysis demonstrates that the extracellular domain of BTLA is monomeric and that BTLA and HVEM form a 1:1 complex. Alanine-scanning mutagenesis of HVEM was used to further define critical binding residues. Finally, BTLA adopts an immunoglobulin I-set fold. Despite structural similarities to other CD28-like members, BTLA represents a unique co-receptor.
About this Structure
2AW2 is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Attenuating lymphocyte activity: the crystal structure of the BTLA-HVEM complex., Compaan DM, Gonzalez LC, Tom I, Loyet KM, Eaton D, Hymowitz SG, J Biol Chem. 2005 Nov 25;280(47):39553-61. Epub 2005 Sep 16. PMID:16169851
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