title: Evolution of two types of rhesus lymphocryptovirus similar to type 1 and type 2 Epstein-Barr virus.
abstract: Rhesus monkeys and other nonhuman Old World primates are naturally infected with lymphocryptoviruses (LCV) that are closely related to Epstein-Barr virus (EBV). A rhesus LCV isolate (208-95) was derived from a B-cell lymphoma in a simian immunodeficiency virus-infected rhesus macaque. The EBNA-2 homologues from 208-95 and a previous rhesus LCV isolate (LCL8664) were polymorphic on immunoblotting, so the EBNA-2 genes from these two rhesus LCV were cloned, sequenced, and compared. The EBNA-2 genes have 40% nucleotide and 41% amino acid identities, and the differences are similar to those between the type 1 and type 2 EBV EBNA-2. Sequence from a portion of the LMP1 gene which is extremely divergent among different LCV was virtually identical between the 208-95 and LCL8664 strains, confirming a common rhesus LCV background. Thus, the EBNA-2 polymorphism defines the presence of two different rhesus LCV types, and both rhesus LCV types were found to be prevalent in the rhesus monkey population at the New England Regional Primate Research Center. The existence of two rhesus LCV types suggests that the selective pressure for the evolution of two LCV types is shared by human and nonhuman primate hosts.
authors.affiliation: Department of Medicine, Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA.
authors.forename: Y G
authors.initials: YG
authors.lastname: Cho
authors.forename: A V
authors.initials: AV
authors.lastname: Gordadze
authors.forename: P D
authors.initials: PD
authors.lastname: Ling
authors.forename: F
authors.initials: F
authors.lastname: Wang
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D002460:Cell Line; D003001:Cloning, Molecular; D019309:Epstein-Barr Virus Nuclear Antigens / Q000737:chemistry / Q000235:genetics; D019143:Evolution, Molecular; D006566:Herpesviridae Infections / Q000662:veterinary / Q000821:virology; D006801:Humans; D015151:Immunoblotting; D018143:Lymphocryptovirus / Q000145:classification* / Q000235:genetics* / Q000302:isolation & purification; D016393:Lymphoma, B-Cell / Q000662:veterinary / Q000821:virology; D008253:Macaca mulatta; D008969:Molecular Sequence Data; D008992:Monkey Diseases / Q000821:virology; D010215:Papio; D011110:Polymorphism, Genetic; D017422:Sequence Analysis, DNA; D016097:Simian Acquired Immunodeficiency Syndrome / Q000150:complications; D014412:Tumor Virus Infections / Q000662:veterinary / Q000821:virology; D014763:Viral Matrix Proteins / Q000737:chemistry / Q000235:genetics
chemical_list: C037662:EBV-associated membrane antigen, Epstein-Barr virus; D019309:Epstein-Barr Virus Nuclear Antigens; D014763:Viral Matrix Proteins