title: Immune responses to six synthetic peptides of capsid protein with sera from HIV-1 infected individuals.
abstract: Many B cell epitopes within p24 of human immunodeficiency virus type 1 (HIV-1) were identified, while most of them were determined by using murine monoclonal antibodies reacting with overlapping peptides of p24. Therefore these epitopes may not represent the actual epitopes recognized by the HIV-1 infected individuals. In the present study, immune responses of 67 HIV-1 positive sera from Yunnan Province, China to five peptides on p24 of HIV-1 and one of HIV-2 were analyzed. All of 67 sera did not recognize peptide GA-12 on HIV-1 and peptide AG-23 on HIV-2, which indicated that GA-12 was not human B cell epitope and AG-23 did not cross-react with HIV-1 positive serum. Except 13 sera (19.4%), all remaining sera did not recognize peptides NI-15, DR-16, DC-22 and PS-18, which indicated that these four peptides represented B cell linear epitopes of HIV-1 p24 in some HIV-1 infected individuals but not the immuno-dominant epitopes in most individuals.
authors.affiliation: Laboratory of Molecular Immunopharmacology, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China.
authors.forename: Guangjie
authors.initials: G
authors.lastname: Liu
authors.forename: Liumeng
authors.initials: L
authors.lastname: Yang
authors.forename: Jianhua
authors.initials: J
authors.lastname: Wang
authors.forename: Gaohong
authors.initials: G
authors.lastname: Zhang
authors.forename: Xiangmei
authors.initials: X
authors.lastname: Chen
authors.forename: Yongtang
authors.initials: Y
authors.lastname: Zheng
mesh_terms: D000595:Amino Acid Sequence; D001402:B-Lymphocytes / Q000276:immunology / Q000378:metabolism* / Q000473:pathology; D004797:Enzyme-Linked Immunosorbent Assay; D000939:Epitopes; D015483:HIV Antibodies / Q000097:blood / Q000276:immunology*; D015488:HIV Antigens / Q000737:chemistry / Q000276:immunology; D016655:HIV Core Protein p24 / Q000737:chemistry / Q000276:immunology; D015658:HIV Infections / Q000097:blood / Q000276:immunology*; D015497:HIV-1; D006801:Humans; D008969:Molecular Sequence Data; D010455:Peptides / Q000737:chemistry / Q000276:immunology* / Q000378:metabolism
chemical_list: D000939:Epitopes; D015483:HIV Antibodies; D015488:HIV Antigens; D016655:HIV Core Protein p24; D010455:Peptides