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M9490073.TXT
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1994-09-03
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Document 0073
DOCN M9490073
TI Comparison of biological properties of feline immunodeficiency virus
isolates using recombinant chimeric viruses.
DT 9411
AU Kohmoto M; Miyazawa T; Tomonaga K; Kawaguchi Y; Mori T; Tohya Y; Kai C;
Mikami T; Department of Veterinary Microbiology, Faculty of
Agriculture,; University of Tokyo, Japan.
SO J Gen Virol. 1994 Aug;75 ( Pt 8):1935-42. Unique Identifier : AIDSLINE
MED/94321983
AB The biological properties of homogeneous populations of feline
immunodeficiency viruses derived from infectious, molecular clones of
the TM1, TM2 and Petaluma strains were compared. Differences in
infectivity for Crandell feline kidney (CRFK) cells, and in syncytium
formation and replication kinetics in a feline T lymphoblastoid cell
line (MYA-1 cells) were observed. To investigate the basis of these
differences between the TM2 and Petaluma strains, we first compared the
basal promoter activity of the long terminal repeat which is a highly
divergent region, but no significant difference in activities was found
in CRFK cells. We then constructed two recombinant chimeric clones which
carry gag, pol, vif, and ORF A from the heterologous virus. From
analyses using the chimeric clones, it was revealed that efficient virus
growth in CRFK cells and MYA-1 cells was regulated by the gag, pol, vif
and ORF A regions, whereas viral determinants of infectivity for CRFK
cells, and syncytium formation and cytopathogenicity in MYA-1 cells,
were located in the env region.
DE Animal Cats Cells, Cultured Comparative Study Cytopathogenic Effect,
Viral DNA, Recombinant Immunodeficiency Virus, Feline/*GROWTH &
DEVELOPMENT/*GENETICS/ ISOLATION & PURIF/PATHOGENICITY Phenotype
Promoter Regions (Genetics)/GENETICS Repetitive Sequences, Nucleic
Acid/GENETICS Support, Non-U.S. Gov't T-Lymphocytes/*MICROBIOLOGY
*Variation (Genetics) Viral Proteins/GENETICS Virulence/GENETICS
JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).