title: Heterogeneity within the Epstein-Barr virus nuclear antigen 2 gene in different strains of Epstein-Barr virus.
abstract: DNA isolated from biopsies of endemic Burkitt's lymphoma (BL) from New Guinea was analysed for the presence of Epstein-Barr virus (EBV) sequences using the polymerase chain reaction. Primers were designed to amplify sequences within the Epstein-Barr virus nuclear antigen (EBNA) 1 and 2 genes. These analyses detected the EBNA1 sequence in all the biopsies studied. Additional sets of primers directed against the EBNA2 gene were used in order to categorize the EBV strains as A-type or B-type (39% A-type; 50% B-type; 5% A- and B-type; 5% untypeable). These results indicated that DNA sequence heterogeneity within the EBNA2 gene region may exist in different strains of EBV. The extent of DNA sequence heterogeneity among different strains of EBV was determined by sequencing of a region within the EBNA2 gene in a number of different A-type and B-type strains of EBV originating from Africa or New Guinea. The results demonstrated DNA sequence heterogeneity within the EBNA2 gene in different strains of EBV. This heterogeneity was more extensive among A-type strains than B-type strains of EBV.
authors.affiliation: Queensland Institute of Medical Research, Herston, Brisbane, Australia.
authors.forename: C
authors.initials: C
authors.lastname: Aitken
authors.forename: S K
authors.initials: SK
authors.lastname: Sengupta
authors.forename: C
authors.initials: C
authors.lastname: Aedes
authors.forename: D J
authors.initials: DJ
authors.lastname: Moss
authors.forename: T B
authors.initials: TB
authors.lastname: Sculley
mesh_terms: D000349:Africa / Q000453:epidemiology; D000956:Antigens, Viral / Q000235:genetics*; D001483:Base Sequence; D002051:Burkitt Lymphoma / Q000453:epidemiology / Q000382:microbiology*; D004268:DNA-Binding Proteins / Q000235:genetics*; D019309:Epstein-Barr Virus Nuclear Antigens; D005814:Genes, Viral / Q000235:genetics*; D004854:Herpesvirus 4, Human / Q000235:genetics*; D006801:Humans; D008969:Molecular Sequence Data; D009512:New Guinea / Q000453:epidemiology; D016133:Polymerase Chain Reaction
chemical_list: D000956:Antigens, Viral; D004268:DNA-Binding Proteins; D019309:Epstein-Barr Virus Nuclear Antigens