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1996-03-30
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Document 0949
DOCN M9650949
TI Molecular subtyping of human T-cell lymphotropic virus type 2 by
single-strand conformation polymorphism analysis. Retrovirus
Epidemiology Donor Study Group.
DT 9505
AU Heneine W; Switzer WM; Busch M; Khabbaz RF; Kaplan JE; Retrovirus
Diseases Branch, Centers for Disease Control and; Prevention, Atlanta,
Georgia 30333, USA.
SO J Clin Microbiol. 1995 Dec;33(12):3260-3. Unique Identifier : AIDSLINE
MED/96156139
AB Molecular subtyping of human T-cell lymphotropic virus type 2 (HTLV-2)
by the currently used method of restriction fragment length polymorphism
analysis may not be sufficiently discriminatory for transmission studies
because of the predominance of single restriction types in various
HTLV-2-infected populations. The utility of single-strand conformations
polymorphism (SSCP) analysis was evaluated as a tool to improve the
sensitivity of the subtyping of HTLV-2. The assay was designed to target
a highly variable region in the long terminal repeat and was shown to be
able to detect single nucleotide changes in cloned HTLV-2 sequences.
Analysis of 52 HTLV-2 samples, of which 32 were from 16 sex partner
pairs (16 males, 16 females), showed nine different SSCP patterns.
Identical SSCP results were obtained for each of the 16 couples,
suggesting the presence of similar viral genotypes and, therefore,
supporting the likelihood of sexual transmission of HTLV-2 in each of
these couples. Furthermore, SSCP analysis of seven HTLV-2 samples of the
same restriction type (b5) showed five different SSCP patterns.
Nucleotide sequencing of two samples with distinct SSCP patterns
confirmed the sequence differences. SSCP provides a facile and
discriminatory tool for the differentiation of HTLV-2 strains, including
those previously indistinguishable by restriction fragment length
polymorphism.
DE Base Sequence Comparative Study DNA Primers/GENETICS DNA,
Viral/GENETICS Female Human
HTLV-II/*CLASSIFICATION/*GENETICS/ISOLATION & PURIF HTLV-II
Infections/TRANSMISSION/VIROLOGY Male Molecular Sequence Data
Polymerase Chain Reaction Polymorphism, Restriction Fragment Length
*Polymorphism, Single-Stranded Conformational Reproducibility of
Results Sensitivity and Specificity Sequence Homology, Nucleic Acid
Sexual Partners Virology/*METHODS/STATISTICS & NUMER DATA JOURNAL
ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).