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M94A0168.TXT
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1994-10-01
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Document 0168
DOCN M94A0168
TI Construction and in vitro properties of HIV-1 mutants with deletions in
nonessential genes.
DT 9412
AU Gibbs JS; Regier DA; Desrosiers RC; Harvard Medical School, New England
Regional Primate Research; Center, Southborough, Massachusetts
01772-9102.
SO AIDS Res Hum Retroviruses. 1994 Apr;10(4):343-50. Unique Identifier :
AIDSLINE MED/94347458
AB Auxiliary genes that are not essential for viral replication in cell
culture are found in all known lentiviruses. The nonessential auxiliary
genes of HIV-1 are vif, vpr, vpu, and nef. Sequences within the upstream
region of U3 in the LTR are also not required for virus replication in
cell culture. We constructed a panel of 23 mutants with single and
combination deletions in these regions in the wild-type HIV-1 infectious
molecular clone NL4-3. Deletion of the vpu, vpr, and nef genes and the
U3 upstream sequence (US), individually or in combinations, did not
appreciably alter virus replication in either chimpanzee PBMCs, human
PBMCs, or in the B/T cell hybrid line CEMx174. In contrast, deletion of
the vif gene dramatically delayed virus replication in all three cell
types. This collection of HIV-1 deletion mutants will be useful for
elucidating the functions of these genes and for investigating antiviral
immunity in animal models.
DE Animal Base Sequence Cell Line Chimpansee troglodytes DNA,
Viral/GENETICS *Gene Deletion Genes, nef Genes, vif Genes, vpr
Genes, vpu *Genes, Viral Human HIV Long Terminal Repeat
HIV-1/*GENETICS/PHYSIOLOGY In Vitro Leukocytes,
Mononuclear/MICROBIOLOGY Molecular Sequence Data Mutagenesis Support,
U.S. Gov't, P.H.S. Virus Replication/GENETICS JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).