1t5x
From Proteopedia
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| - | [[Image:1t5x.gif|left|200px]] | + | [[Image:1t5x.gif|left|200px]] |
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| - | '''HLA-DR1 in complex with a synthetic peptide (AAYSDQATPLLLSPR) and the superantigen SEC3-3B2''' | + | {{Structure |
| + | |PDB= 1t5x |SIZE=350|CAPTION= <scene name='initialview01'>1t5x</scene>, resolution 2.50Å | ||
| + | |SITE= | ||
| + | |LIGAND= | ||
| + | |ACTIVITY= | ||
| + | |GENE= HLA-DRA*0101 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]), HLA-DRB1*0101 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]), SEC3 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1280 Staphylococcus aureus]) | ||
| + | }} | ||
| + | |||
| + | '''HLA-DR1 in complex with a synthetic peptide (AAYSDQATPLLLSPR) and the superantigen SEC3-3B2''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1T5X is a [ | + | 1T5X is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [http://en.wikipedia.org/wiki/Staphylococcus_aureus Staphylococcus aureus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1T5X OCA]. |
==Reference== | ==Reference== | ||
| - | A polymorphic pocket at the P10 position contributes to peptide binding specificity in class II MHC proteins., Zavala-Ruiz Z, Strug I, Anderson MW, Gorski J, Stern LJ, Chem Biol. 2004 Oct;11(10):1395-402. PMID:[http:// | + | A polymorphic pocket at the P10 position contributes to peptide binding specificity in class II MHC proteins., Zavala-Ruiz Z, Strug I, Anderson MW, Gorski J, Stern LJ, Chem Biol. 2004 Oct;11(10):1395-402. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15489166 15489166] |
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
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[[Category: mhc class ii; major histocompatibiloty complex protein; hla-dr1; superantigen; antigen; peptide]] | [[Category: mhc class ii; major histocompatibiloty complex protein; hla-dr1; superantigen; antigen; peptide]] | ||
| - | ''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 14:14:13 2008'' |
Revision as of 12:14, 20 March 2008
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| , resolution 2.50Å | |||||||
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| Gene: | HLA-DRA*0101 (Homo sapiens), HLA-DRB1*0101 (Homo sapiens), SEC3 (Staphylococcus aureus) | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
HLA-DR1 in complex with a synthetic peptide (AAYSDQATPLLLSPR) and the superantigen SEC3-3B2
Overview
Peptides bind to class II major histocompatibility complex (MHC) proteins in an extended conformation. Pockets in the peptide binding site spaced to accommodate peptide side chains at the P1, P4, P6, and P9 positions have been previously characterized and help to explain the obtained peptide binding specificity. However, two peptides differing only at P10 have significantly different binding affinities for HLA-DR1. The structure of HLA-DR1 in complex with the tighter binding peptide shows that the peptide binds in the usual polyproline type II conformation, but with the P10 residue accommodated in a shallow pocket at the end of the binding groove. HLA-DR1 variants with polymorphic residues at these positions were produced and found to exhibit different side chain specificity at the P10 position. These results define a new specificity position in HLA-DR proteins.
About this Structure
1T5X is a Protein complex structure of sequences from Homo sapiens and Staphylococcus aureus. Full crystallographic information is available from OCA.
Reference
A polymorphic pocket at the P10 position contributes to peptide binding specificity in class II MHC proteins., Zavala-Ruiz Z, Strug I, Anderson MW, Gorski J, Stern LJ, Chem Biol. 2004 Oct;11(10):1395-402. PMID:15489166
Page seeded by OCA on Thu Mar 20 14:14:13 2008
