home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Collection of Education
/
collectionofeducationcarat1997.iso
/
HEALTH
/
MED9602.ZIP
/
M9620590.TXT
< prev
next >
Wrap
Text File
|
1996-02-26
|
3KB
|
42 lines
Document 0590
DOCN M9620590
TI Human T-cell-leukemia virus type I in post-transfusional spastic
paraparesis: complete proviral sequence from uncultured blood cells.
DT 9602
AU Bazarbachi A; Huang M; Gessain A; Saal F; Saib A; Peries J; De The H;
Galibert F; UPR43 CNRS, Retrovirus et Retrotransposons des vertebres,;
Hopital Saint-Louis, Paris, France.
SO Int J Cancer. 1995 Nov 15;63(4):494-9. Unique Identifier : AIDSLINE
GENBANK/L36905
AB Human T-cell-leukemia virus type I (HTLV-I) is the causative agent of
adult T-cell leukemia/lymphoma (ATL) and tropical spastic
paraparesis/HTLV-I-associated myelopathy (TSP/HAM). The different
disease outcome may be attributable to subtle mutations leading to
modification of viral tropism or infectivity. Initial attempts found a
very high level of sequence conservation among all HTLV-I strains.
However, only one complete proviral DNA sequence is reported from a
TSP/HAM patient, with a provirus derived from immortalized lymphocytes,
which might be expected to be a leukemogenic variant rather than a
neurotropic one. We cloned and sequenced a complete HTLV-I provirus
(HTLV-IBoi) derived from the uncultured lymphocytes of a sub-acute
post-transfusional TSP/HAM patient with clonal integration of HTLV-I.
HTLV-IBoi proviral genome is 9033 bp long, and its overall genetic
organization is similar to that of the prototype HTLV-I(ATK), without
major deletions or insertions. No premature termination codon was found
in the 4 open reading frames of the pX region. Divergence at the
nucleotide level of HTLV-IBoi from the reported full-length HTLV-I
varies from 1 to 9.4%, and indicates that it corresponds to a
cosmopolitan genotype. This study did not identify specific sequences
associated with neurotropic strains.
DE Adult Alternative Splicing Amino Acid Sequence Base Sequence Blood
Transfusion/*ADVERSE EFFECTS Case Report Cloning, Molecular
Comparative Study Genes, Viral Human HTLV-I/*GENETICS Leukocytes,
Mononuclear/*VIROLOGY Male Molecular Sequence Data Open Reading
Frames Paraparesis, Tropical Spastic/BLOOD/*VIROLOGY
Proviruses/*GENETICS Sequence Homology, Amino Acid Sequence Homology,
Nucleic Acid JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).