Document 0115 DOCN M9620115 TI HTLV-I from Iranian Mashhadi Jews in Israel is phylogenetically related to that of Japan, India, and South America rather than to that of Africa and Melanesia. DT 9602 AU Yamashita M; Achiron A; Miura T; Takehisa J; Ido E; Igarashi T; Ibuki K; Osame M; Sonoda S; Melamed E; et al; Laboratory of Pathogenic Virus, Kyoto University, Japan. SO Virus Genes. 1995;10(1):85-90. Unique Identifier : AIDSLINE GENBANK/D38403 AB A new endemic focus of human T-lymphotropic virus type I (HTLV-I) was recently reported among Mashhadi Jews, a group of immigrants from northeastern Iran to Israel. We extracted DNAs from fresh peripheral blood mononuclear cells (PBMCs) and/or gargle mouthwash from 10 HTLV-I carriers, who consisted of members of one family, and HTLV-I-associated myelopathy (HAM) and adult T-cell leukemia (ATL) patients. Long terminal repeat (LTR) regions of proviral DNAs were sequenced and analyzed phylogenetically. In a phylogenetic tree, all the Mashhadi HTLV-I isolates belonged to subtype A, one of the three subtypes of the cosmopolitan type of HTLV-I, and made a tight cluster distinct from the other isolates of subtype A from Japan, India, the Caribbean Basin, and South America. Although a few nucleotide substitutions were observed among the clones sequenced, no characteristic sequence variation was found in different disease manifestations, even in one family or different sources of DNA preparation. DE Adult Africa Aged Base Sequence Carrier State DNA, Viral Female Human HTLV-I/*CLASSIFICATION/ISOLATION & PURIF HTLV-I Infections/BLOOD/*VIROLOGY India Iran Israel Japan Jews Leukemia, T-Cell/BLOOD/VIROLOGY Leukocytes, Mononuclear/VIROLOGY Male Melanesia Middle Age Molecular Sequence Data Paraparesis, Tropical Spastic/BLOOD/VIROLOGY Phylogeny South America JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).