title: Nef genes of SIV.
abstract: Molecular clones of SIVmac were constructed that differed only in sequences within the nef gene. DEAE-transfection of viral DNA containing an open from of nef yielded virus that replicated with similar kinetics and to a similar extent in macaque peripheral blood lymphocyte (PBL) cultures as virus with a deletion or stop codon within nef. Rhesus monkeys that received each kind of molecularly cloned virus became infected. Our results additionally suggest that mutant forms of virus are selected in vitro while open, functional forms are selected in vivo. In animals infected with virus containing a stop codon within nef, reversion of the stop codon to a coding codon was demonstrated in five of five clones analyzed. These results indicate that nef is playing some role crucial to the virus life cycle in vivo.
authors.affiliation: New England Regional Primate Research Center, Southborough, MA.
authors.forename: H W
authors.initials: HW
authors.lastname: Kestler
authors.forename: K
authors.initials: K
authors.lastname: Mori
authors.forename: D P
authors.initials: DP
authors.lastname: Silva
authors.forename: T
authors.initials: T
authors.lastname: Kodama
authors.forename: N W
authors.initials: NW
authors.lastname: King
authors.forename: M D
authors.initials: MD
authors.lastname: Daniel
authors.forename: R C
authors.initials: RC
authors.lastname: Desrosiers
mesh_terms: D000818:Animals; D001483:Base Sequence; D002460:Cell Line; D003001:Cloning, Molecular; D003062:Codon; D015754:Genes, nef; D006801:Humans; D007700:Kinetics; D008253:Macaca mulatta; D009154:Mutation; D016097:Simian Acquired Immunodeficiency Syndrome / Q000382:microbiology*; D015302:Simian Immunodeficiency Virus / Q000235:genetics*; D014162:Transfection
chemical_list: D003062:Codon