1HHI

THE ANTIGENIC IDENTITY OF PEPTIDE(SLASH)MHC COMPLEXES: A COMPARISON OF THE CONFORMATION OF FIVE PEPTIDES PRESENTED BY HLA-A2

PDB DOI: 10.2210/pdb1HHI/pdb

Classification: HISTOCOMPATIBILITY ANTIGEN
Organism(s): Homo sapiens, Influenza A virus
Expression System: Escherichia coli
Mutation(s): No

Deposited: 1993-06-30 Released: 1993-10-31
Deposition Author(s): Madden, D.R., Garboczi, D.N., Wiley, D.C.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.50 Å
R-Value Work: 0.273
R-Value Observed: 0.273

wwPDB Validation 3D Report Full Report

This is version 1.2 of the entry. See complete history.

Literature

The antigenic identity of peptide-MHC complexes: a comparison of the conformations of five viral peptides presented by HLA-A2.

Madden, D.R., Garboczi, D.N., Wiley, D.C.

(1993) Cell 75: 693-708

PubMed: 7694806 Search on PubMed
DOI: 10.1016/0092-8674(93)90490-h
Primary Citation of Related Structures:
1HHG, 1HHH, 1HHI, 1HHJ, 1HHK

PubMed Abstract:

Complexes of five peptides (from HIV-1, influenza A virus, HTLV-1, and hepatitis B virus proteins) bound to the human class I MHC molecule HLA-A2 have been studied by X-ray crystallography. While the peptide termini and their second and C-terminal anchor side chains are bound similarly in all five cases, the main chain and side chain conformations of each peptide are strikingly different in the center of the binding site, and these differences are accessible to direct TCR recognition. Each of the central peptide residues is seen to point up for some bound peptides, but down or sideways for others. Thus, although fixed at its ends, the structure of an MHC-bound peptide appears to be a highly complex function of its entire sequence, potentially sensitive to even small sequence differences. In contrast, MHC structural variation is relatively limited. These results offer a structural framework for understanding the role of nonanchor peptide side chains in both peptide-MHC binding affinity and TCR recognition.

Related Citations:

Hla-A2-Peptide Complexes: Refolding and Crystallization of Molecules Expressed in Escherichia Coli and Complexed with Single Antigenic Peptides
Garboczi, D.N., Hung, D.T., Wiley, D.C.
(1992) Proc Natl Acad Sci U S A 89: 3429

The Minimum Peptide Epitope from the Influenza Virus Matrix Protein
Bednarek, M.A., Sauma, S.Y., Gammon, M.C., Porter, G., Tamhankar, S., Williamson, A.R., Zweerink, H.J.
(1991) J Immunol 147: 4047

Identification of the Nonamer Peptide from Influenza a Matrix Protein and the Role of Pockets of Hla-A2 in its Recognition by Cytotoxic T Lymphocytes
Morrison, J., Elvin, J., Latron, F., Gotch, F., Moots, R., Strominger, J.L., Mcmichael, A.
(1992) Eur J Immunol 22: 903

The Three-Dimensional Structure of Hla-B27 at 2.1 Angstroms Resolution Suggests a General Mechanism for Tight Peptide Binding to Mhc
Madden, D.R., Gorga, J.C., Strominger, J.L., Wiley, D.C.
(1992) Cell 70: 1035

Refined Structure of the Human Histocompatibility Antigen Hla-A2 at 2.6 Angstroms Resolution
Saper, M.A., Bjorkman, P.J., Wiley, D.C.
(1991) J Mol Biol 219: 277

Structure of the Human Class I Histocompatibility Antigen, Hla-A2
Bjorkman, P.J., Saper, M.A., Samraoui, B., Bennett, W.S., Strominger, J.L., Wiley, D.C.
(1987) Nature 329: 506

The Foreign Antigen Binding Site and T Cell Recognition Regions of Class I Histocompatibility Antigens
Bjorkman, P.J., Saper, M.A., Samraoui, B., Bennett, W.S., Strominger, J.L., Wiley, D.C.
(1987) Nature 329: 512

Crystallization and X-Ray Diffraction Studies on the Histocompatibility Antigens Hla-A2 and Hla-A28 from Human Cell Membranes
Bjorkman, P.J., Strominger, J.L., Wiley, D.C.
(1985) J Mol Biol 186: 205

Organizational Affiliation:

Department of Biochemistry and Molecular Biology, Howard Hughes Medical Institute, Harvard University, Cambridge, Massachusetts 02138.

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CLASS I HISTOCOMPATIBILITY ANTIGEN (HLA-A*0201) (ALPHA CHAIN)	A, D	275	Homo sapiens	Mutation(s): 0 Gene Names: BETA-2-MICROGLOBULIN, HLA-A, HLAA
UniProt & NIH Common Fund Data Resources
Find proteins for P04439 (Homo sapiens) Explore P04439 Go to UniProtKB: P04439
PHAROS: P04439 GTEx: ENSG00000206503
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P04439
Protein Feature View Expand
Reference Sequence

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(by identity cutoff) | 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
BETA 2-MICROGLOBULIN	B, E	100	Homo sapiens	Mutation(s): 0 Gene Names: BETA-2-MICROGLOBULIN, B2M, CDABP0092, HDCMA22P
UniProt & NIH Common Fund Data Resources
Find proteins for P61769 (Homo sapiens) Explore P61769 Go to UniProtKB: P61769
PHAROS: P61769 GTEx: ENSG00000166710
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P61769
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Reference Sequence

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Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
INFLUENZA A MATRIX PROTEIN M1 (RESIDUES 58-66)	C, F	9	Influenza A virus	Mutation(s): 0
UniProt
Find proteins for P03485 (Influenza A virus (strain A/Puerto Rico/8/1934 H1N1)) Explore P03485 Go to UniProtKB: P03485
Entity Groups
UniProt Group	P03485
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Reference Sequence