title: HLA-A3 supermotif defined by quantitative structure-activity relationship analysis.
abstract: Activation of a cytotoxic T cell requires specific binding of antigenic peptides to major histocompatibility complex (MHC) molecules. This paper reports a study of peptides binding to members of the HLA-A3 superfamily using a recently developed 2D-QSAR method, called the additive method. Four alleles with high phenotype frequency were included in the study: A*0301, A*1101, A*3101 and A*6801. The influence of each of the 20 amino acids at each position of the peptide on binding was studied. A refined A3 supertype motif was defined in the study.
authors.affiliation: Edward Jenner Institute for Vaccine Research, Compton, Newbury, Berkshire RG20 7NN, UK. pingping.guan@jenner.ac.uk
authors.forename: Pingping
authors.initials: P
authors.lastname: Guan
authors.forename: Irini A
authors.initials: IA
authors.lastname: Doytchinova
authors.forename: Darren R
authors.initials: DR
authors.lastname: Flower
mesh_terms: D000483:Alleles; D020816:Amino Acid Motifs; D000595:Amino Acid Sequence; D000596:Amino Acids / Q000737:chemistry / Q000235:genetics / Q000378:metabolism; D001665:Binding Sites; D015791:HLA-A3 Antigen / Q000737:chemistry* / Q000235:genetics / Q000276:immunology / Q000378:metabolism*; D006801:Humans; D008954:Models, Biological; D008969:Molecular Sequence Data; D009842:Oligopeptides / Q000737:chemistry / Q000235:genetics / Q000378:metabolism; D010641:Phenotype; D011485:Protein Binding; D021281:Quantitative Structure-Activity Relationship; D011994:Recombinant Proteins / Q000737:chemistry / Q000235:genetics / Q000378:metabolism
chemical_list: D000596:Amino Acids; D015791:HLA-A3 Antigen; D009842:Oligopeptides; D011994:Recombinant Proteins