home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Collection of Education
/
collectionofeducationcarat1997.iso
/
HEALTH
/
MED9602.ZIP
/
M9620398.TXT
< prev
next >
Wrap
Text File
|
1996-02-26
|
2KB
|
38 lines
Document 0398
DOCN M9620398
TI A leucine triplet repeat sequence (LXX)4 in p6gag is important for Vpr
incorporation into human immunodeficiency virus type 1 particles.
DT 9602
AU Lu YL; Bennett RP; Wills JW; Gorelick R; Ratner L; Department of
Medicine, Washington University, St. Louis,; Missouri 63110, USA.
SO J Virol. 1995 Nov;69(11):6873-9. Unique Identifier : AIDSLINE
MED/96013785
AB Incorporation of Vpr into human immunodeficiency virus type 1 (HIV-1)
virions is mediated by the Gag protein, independently of other viral
components. We have coexpressed Vpr and Gag constructs in a vaccinia
virus expression system in order to map the region of Gag involved in
Vpr packaging. Deletion of the carboxyl-terminal p6 region of Gag
impaired the ability of Gag to package Vpr. To confirm the role of p6 in
Vpr packaging, Rous sarcoma virus (RSV)-HIV chimeras containing HIV-1 p6
were constructed. Although RSV Gag does not package Vpr into virus
particles, a chimera containing HIV-1 p6 is sufficient for Vpr
incorporation. To map the region of p6 involved in Vpr packaging, a
series of p6 point mutations and deletion mutations was analyzed.
Mutations in the N-terminal p6 proline-rich domain, for which
preliminary evidence shows a marked decrease in virion incorporated RNA,
did not affect Vpr incorporation. Deletion of residues 1 to 31 of HIV-1
p6 did not affect Vpr packaging, but residues 35 to 47, including an
(LXX)4 domain, were required for Vpr incorporation into virus particles.
DE Amino Acid Sequence Animal Base Sequence Cell Line Comparative Study
DNA Primers Gene Expression Gene Products,
gag/BIOSYNTHESIS/*METABOLISM Gene Products,
vpr/BIOSYNTHESIS/*METABOLISM *Genes, gag Human
HIV-1/GENETICS/*METABOLISM Leucine Molecular Sequence Data
Mutagenesis, Site-Directed Plasmids Polymerase Chain Reaction
Recombinant Proteins/BIOSYNTHESIS/METABOLISM Support, Non-U.S. Gov't
Support, U.S. Gov't, P.H.S. Vaccinia Virus JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).