title: Host cell range of T-lymphotropic feline leukemia virus in vitro.
abstract: We compared the host cell range of T-lymphotropic feline leukemia virus (FeLV-T) with that of FeLV subgroup B (FeLV-B) by pseudotype assay in the presence of FeLIX, a truncated envelope glycoprotein of endogenous FeLV. Although both viruses use Pit1 as a receptor and FeLIX does not hamper FeLV-B infection by receptor interference, the host ranges of FeLV-T and -B were not exactly the same, suggesting a different Pit1 usage at the post-binding level. A comparison of Pit1 sequences of various mammalian species indicated that extracellular loop 1 in a topology model deduced with the PHD PredictProtein algorism may be one of the regions responsible for efficient infection by FeLV-T.
authors.affiliation: Laboratory of Veterinary Infectious Diseases, Department of Applied Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido, Japan.
authors.forename: Takayuki
authors.initials: T
authors.lastname: Shojima
authors.forename: Risa
authors.initials: R
authors.lastname: Nakata
authors.forename: Takayuki
authors.initials: T
authors.lastname: Miyazawa
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001665:Binding Sites / Q000235:genetics; D019556:COS Cells; D002415:Cats; D002460:Cell Line; D045744:Cell Line, Tumor; D002522:Chlorocebus aethiops; D006801:Humans; D005256:Leukemia Virus, Feline / Q000145:classification / Q000235:genetics / Q000502:physiology*; D051379:Mice; D008969:Molecular Sequence Data; D009154:Mutation; D041681:NIH 3T3 Cells; D011991:Receptors, Virus / Q000235:genetics / Q000378:metabolism; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid; D014759:Viral Envelope Proteins / Q000235:genetics / Q000378:metabolism; D014779:Virus Replication / Q000235:genetics / Q000502:physiology*
chemical_list: D011991:Receptors, Virus; D014759:Viral Envelope Proteins