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Identification of five different Patr class I molecules that bind HLA supertype peptides and definition of their peptide binding motifs. 2000

D M McKinney, and A L Erickson, and C M Walker, and R Thimme, and F V Chisari, and J Sidney, and A Sette
Epimmune Inc., San Diego, CA 92121, USA. dmckinney@epimmune.com

We have sequenced the Pan troglodytes class I (Patr) molecules from three common chimpanzees and expressed them as single molecules in a class I-deficient cell line. These lines were utilized to obtain purified class I molecules to define the peptide binding motifs associated with five different Patr molecules. Based on these experiments, as well as analysis of the predicted structure of the B and F polymorphic MHC pockets, we classified five Patr molecules (Patr-A*0101, Patr-B*0901, Patr-B*0701, Patr-A*0602, and Patr-B*1301) within previously defined supertype specificities associated with HLA class I molecules (HLA-A3, -B7, -A1, and -A24 supertypes). The overlap in the binding repertoire between specific HLA and Patr class I molecules was in the range of 33 to 92%, depending on the particular Patr molecule as assessed by the binding of HIV-, hepatitis B virus-, and hepatitis C virus-derived epitopes. Finally, live cell binding assays of nine chimpanzee-derived B cell lines demonstrated that HLA supertype peptides bound to Patr class I molecules with frequencies in the 20-50% range.

UI MeSH Term Description Entries
D009842 Oligopeptides Peptides composed of between two and twelve amino acids. Oligopeptide
D011485 Protein Binding The process in which substances, either endogenous or exogenous, bind to proteins, peptides, enzymes, protein precursors, or allied compounds. Specific protein-binding measures are often used as assays in diagnostic assessments. Plasma Protein Binding Capacity,Binding, Protein
D002461 Cell Line, Transformed Eukaryotic cell line obtained in a quiescent or stationary phase which undergoes conversion to a state of unregulated growth in culture, resembling an in vitro tumor. It occurs spontaneously or through interaction with viruses, oncogenes, radiation, or drugs/chemicals. Transformed Cell Line,Cell Lines, Transformed,Transformed Cell Lines
D002679 Pan troglodytes The common chimpanzee, a species of the genus Pan, family HOMINIDAE. It lives in Africa, primarily in the tropical rainforests. There are a number of recognized subspecies. Chimpanzee,Chimpanzee troglodytes,Chimpanzee troglodyte,Chimpanzees,Pan troglodyte,troglodyte, Pan,troglodytes, Chimpanzee
D005805 Genes, MHC Class I Genetic loci in the vertebrate major histocompatibility complex which encode polymorphic characteristics not related to immune responsiveness or complement activity, e.g., B loci (chicken), DLA (dog), GPLA (guinea pig), H-2 (mouse), RT-1 (rat), HLA-A, -B, and -C class I genes of man. Class I Genes,Genes, Class I,Genes, H-2 Class I,Genes, HLA Class I,MHC Class I Genes,H-2 Class I Genes,HLA Class I Genes,Class I Gene,Gene, Class I,Genes, H 2 Class I,H 2 Class I Genes
D006680 HLA Antigens Antigens determined by leukocyte loci found on chromosome 6, the major histocompatibility loci in humans. They are polypeptides or glycoproteins found on most nucleated cells and platelets, determine tissue types for transplantation, and are associated with certain diseases. Human Leukocyte Antigen,Human Leukocyte Antigens,Leukocyte Antigens,HL-A Antigens,Antigen, Human Leukocyte,Antigens, HL-A,Antigens, HLA,Antigens, Human Leukocyte,Antigens, Leukocyte,HL A Antigens,Leukocyte Antigen, Human,Leukocyte Antigens, Human
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000483 Alleles Variant forms of the same gene, occupying the same locus on homologous CHROMOSOMES, and governing the variants in production of the same gene product. Allelomorphs,Allele,Allelomorph
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001402 B-Lymphocytes Lymphoid cells concerned with humoral immunity. They are short-lived cells resembling bursa-derived lymphocytes of birds in their production of immunoglobulin upon appropriate stimulation. B-Cells, Lymphocyte,B-Lymphocyte,Bursa-Dependent Lymphocytes,B Cells, Lymphocyte,B Lymphocyte,B Lymphocytes,B-Cell, Lymphocyte,Bursa Dependent Lymphocytes,Bursa-Dependent Lymphocyte,Lymphocyte B-Cell,Lymphocyte B-Cells,Lymphocyte, Bursa-Dependent,Lymphocytes, Bursa-Dependent

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