期刊名称:Proceedings of the National Academy of Sciences
印刷版ISSN:0027-8424
电子版ISSN:1091-6490
出版年度:1980
卷号:77
期号:5
页码:3004-3008
DOI:10.1073/pnas.77.5.3004
语种:English
出版社:The National Academy of Sciences of the United States of America
摘要:We have identified and isolated a presumptive leukemogenic provirus from myeloblasts of a chicken in which leukemia had been induced by avian myeloblastosis virus (AMV). Leukemic myeloblasts isolated from peripheral blood or from converted yolk sac cultures of various strains of chickens, regardless of the endogenous proviral content or AMV pseudotype used for infection, contain an EcoRI 2.2-megadalton (MDaI) and a HindIII 2.6-MDal proviral fragment. A proviral genome flanked by chicken DNA sequences on either side and containing both the EcoRI 2.2-MDal and the HindIII 2.6-MDal fragments was inserted by molecular recombination into lambda phage Charon 4A and then cloned. This presumptive AMV proviral genome has a mass of approximately 4.9 MDal and contains terminal redundancies with respect to 3' viral RNA sequences.