Affiliation:
1. Department of Microbiology and Immunology, University of California School of Medicine, San Francisco 94143.
Abstract
We used a genetic strategy to isolate the chicken gene believed to encode the receptor for subgroup A avian leukosis and sarcoma viruses (ALSV-A). Chicken genomic DNA was transfected into monkey COS-7 cells, and two independent primary transfectants susceptible to ALSV-A infection were identified by using ALSV-A vectors containing a hygromycin B resistance gene. A second round of transfection and selection in mouse BALB/3T3 fibroblasts again led to isolation of a transfectant susceptible to infection by ALSV-A. Plasmid DNA sequences linked to chicken DNA during the primary transfection segregated with chicken DNA in the secondary transfectant and served as a molecular tag to clone the gene conferring susceptibility. Expression of the cloned gene in mouse BALB/3T3 cells conferred susceptibility to infection by ALSV-A but not by ALSV-B. Therefore the cloned gene most probably represents the tv-a locus, the genetically defined receptor gene for ALSV-A.
Publisher
American Society for Microbiology
Subject
Virology,Insect Science,Immunology,Microbiology
Cited by
186 articles.
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