2bck

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{{STRUCTURE_2bck| PDB=2bck | SCENE= }}
{{STRUCTURE_2bck| PDB=2bck | SCENE= }}
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'''Crystal Structure of HLA-A*2402 Complexed with a telomerase peptide'''
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===Crystal Structure of HLA-A*2402 Complexed with a telomerase peptide===
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==Overview==
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HLA-A*2402 is the most commonly expressed HLA allele in oriental populations. It is also widely expressed in the Caucasian population, making it one of, if not the most abundant HLA I types. In order to study its structure in terms of overall fold and peptide presentation, a soluble form of this HLA I (alpha1, alpha2, alpha3 and beta(2)m domains) has been expressed, refolded and crystallized in complex with a cancer-related telomerase peptide (VYGFVRACL), and its structure has been solved to 2.8 A resolution. The overall structure of HLA-A*2402 is virtually identical to other reported peptide-HLA I structures. However, there are distinct features observable from this structure at the HLA I peptide binding pockets. The size and depth of pocket B makes it highly suitable for binding to large aromatic side chains, which explains the high prevalence of tyrosine at peptide position 2. Also, for HLA binding at peptide position 5, there is an additional anchor point, which allows the proximal amino acids to protrude out, providing a prominent feature for TCR interaction. Finally, pocket F allows the anchor residue at position 9 to be bound unusually deeply within the HLA structure.
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The line below this paragraph, {{ABSTRACT_PUBMED_16323248}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 16323248 is the PubMed ID number.
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{{ABSTRACT_PUBMED_16323248}}
==About this Structure==
==About this Structure==
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[[Category: Immunoglobulin domain]]
[[Category: Immunoglobulin domain]]
[[Category: Mhc fold]]
[[Category: Mhc fold]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 20:06:46 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 18:48:04 2008''

Revision as of 15:48, 27 July 2008

Image:2bck.png

Template:STRUCTURE 2bck

Crystal Structure of HLA-A*2402 Complexed with a telomerase peptide

Template:ABSTRACT PUBMED 16323248

About this Structure

2BCK is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Crystal structure of HLA-A*2402 complexed with a telomerase peptide., Cole DK, Rizkallah PJ, Gao F, Watson NI, Boulter JM, Bell JI, Sami M, Gao GF, Jakobsen BK, Eur J Immunol. 2006 Jan;36(1):170-9. PMID:16323248

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