home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Collection of Education
/
collectionofeducationcarat1997.iso
/
HEALTH
/
MED9602.ZIP
/
M9620392.TXT
< prev
next >
Wrap
Text File
|
1996-02-26
|
3KB
|
51 lines
Document 0392
DOCN M9620392
TI Isolation and characterization of a new simian T-cell leukemia virus
type 1 from naturally infected celebes macaques (Macaca tonkeana):
complete nucleotide sequence and phylogenetic relationship with the
Australo-Melanesian human T-cell leukemia virus type 1.
DT 9602
AU Ibrahim F; de The G; Gessain A; Unite d'Epidemiologie des Virus
Oncogenes, Institut Pasteur,; France.
SO J Virol. 1995 Nov;69(11):6980-93. Unique Identifier : AIDSLINE
GENBANK/Z46900
AB A study of simian T-cell leukemia virus type 1 (STLV-1) infection in a
captive colony of 23 Macaca tonkeana macaques indicated that 17 animals
had high human T-cell leukemia virus type 1 (HTLV-1) antibody titers.
Genealogical analysis suggested mainly a mother-to-offspring
transmission of this STLV-1. Three long-term T-cell lines, established
from peripheral blood mononuclear cell cultures from three
STLV-1-seropositive monkeys, produced HTLV-1 Gag and Env antigens and
retroviral particles. The first complete nucleotide sequence of an
STLV-1 (9,025 bp), obtained for one of these isolates, indicated an
overall genetic organization similar to that of HTLV-1 but with a
nucleotide variability for the structural genes ranging from 7.8 to
13.1% compared with the HTLV-1 ATK and STLV-1 PTM3 Asian prototypes. The
Tax and Rex regulatory proteins were well conserved, while the pX
region, known to encode new proteins in HTLV-1 (open reading frames I
and II), was more divergent than that in the ATK strain. Furthermore, a
fragment of 522 bp of the gp21 env gene from uncultured peripheral blood
mononuclear cell DNAs from five of the STLV-1-infected monkeys was
sequenced. Phylogenetic trees constructed with the long terminal repeat
and env (gp46 and gp21) regions demonstrated that this new STLV-1
occupies a unique position within the Asian STLV-1 and HTLV-1 isolates,
being, by most analyses, related more to the Australo-Melanesian HTLV-1
topotype than to any other Asian STLV-1. These data raise new hypotheses
on the possible interspecies viral transmission between monkeys carrying
STLV-1 and early Australoid settlers, ancestors of the present day
Australo-Melanesian inhabitants, during their migrations from the
Southeast Asian land mass to the greater Australian continent.
DE Amino Acid Sequence Animal Antigens, Viral/ANALYSIS Australia Base
Sequence Binding Sites Cloning, Molecular Comparative Study DNA
Primers Enhancer Elements (Genetics) Female Gene Products,
rex/METABOLISM Human HTLV-BLV Infections/*VIROLOGY
HTLV-I/CLASSIFICATION/*GENETICS Macaca/GENETICS/*VIROLOGY Male
Melanesia Molecular Sequence Data Pedigree *Phylogeny Sequence
Homology, Amino Acid Sequence Homology, Nucleic Acid Support, Non-U.S.
Gov't STLV/CLASSIFICATION/*GENETICS/*ISOLATION & PURIF TATA Box
JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).