ISDA: 2HN7

Deposition Date 2006-07-12

Release Date 2006-11-28

Last Version Date 2024-10-16

Entry Detail

PDB ID:

2HN7

Keywords:

IMMUNE SYSTEM

Title:

HLA-A*1101 in complex with HBV peptide homologue

Biological Source:

Source Organism(s):

Homo sapiens (Taxon ID: 9606)

Expression System(s):

Escherichia coli bl21(de3)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.60 Å

R-Value Free:

0.21

R-Value Work:

0.14

R-Value Observed:

0.15

Space Group:

P 1 21 1

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:HLA class I histocompatibility antigen, A-11 alpha chain
Chain IDs:A
Chain Length:275
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P04439 Pfam ID:PF00129, PF07654

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Beta-2-microglobulin
Gene (Uniprot):B2M
Chain IDs:B
Chain Length:99
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P61769 Pfam ID:PF07654

Polymer Type:polypeptide(L)
Molecule:DNA polymerase PEPTIDE HOMOLOGUE
Chain IDs:C
Chain Length:10
Number of Molecules:1
Biological Source:

Ligand Molecules

SO4

Primary Citation

Structure of HLA-A*1101 in complex with a hepatitis B peptide homologue.

Blicher, T, Kastrup, J.S, Pedersen, L.O, Buus, S, Gajhede, M.Show

Acta Crystallogr.,Sect.F 62 1179 1184 (2006)

PMID: 17142892 DOI: 10.1107/S1744309106044228

Abstact

A high-resolution structure of the human MHC-I molecule HLA-A*1101 is presented in which it forms a complex with a sequence homologue of a peptide that occurs naturally in hepatitis B virus DNA polymerase. The sequence of the bound peptide is AIMPARFYPK, while that of the corresponding natural peptide is LIMPARFYPK. The peptide does not make efficient use of the middle E pocket for binding, which leads to a rather superficial and exposed binding mode for the central peptide residues. Despite this, the peptide binds with high affinity (IC50 of 31 nM).

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Primary Citation of related structures

Abstact

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