home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
The Arsenal Files 6
/
The Arsenal Files 6 (Arsenal Computer).ISO
/
health
/
med9605d.zip
/
M9650947.TXT
< prev
next >
Wrap
Text File
|
1996-03-30
|
3KB
|
41 lines
Document 0947
DOCN M9650947
TI Simple enzyme immunoassay for titration of antibodies to the CD4-binding
site of human immunodeficiency virus type 1 gp120.
DT 9505
AU Turbica I; Posner M; Bruck C; Barin F; Departement de Microbiologie
Medicale et Moleculaire, Unite; de Recherche Associee Centre National de
la Recherche; Scientifique 1334, Centre Hospitalier Universitaire
Bretonneau,; Tours, France.
SO J Clin Microbiol. 1995 Dec;33(12):3319-23. Unique Identifier : AIDSLINE
MED/96156153
AB We report the development of an immunoassay for the titration of
antibody to the CD4-binding site (CD4BS) of the human immunodeficiency
virus type 1 (HIV-1) surface glycoprotein gp120. This assay is a
competitive enzyme-linked immunosorbent assay in which serum antibodies
compete with labeled F105, a human monoclonal antibody whose
corresponding epitope overlaps the conformation-dependent CD4BS, for
binding to purified recombinant gp120 coated on a solid phase.
Ninety-nine percent (109 of 110) of HIV-1-positive French patients and
91% (51 of 56) of HIV-1-positive African patients had CD4BS antibodies,
indicating that the conformational CD4BS epitope is well conserved among
different subtypes of HIV-1. Titers of CD4BS antibodies according to
clinical status appeared to be not statistically different. A
longitudinal study in 21 seroconverters showed that, for the majority of
individuals, CD4BS antibodies appeared early and persisted at relatively
high titers for several years. None of 21 HIV-2-seropositive patients
had CD4BS antibodies in our assay, suggesting that the antibodies
produced during HIV-2 infection are not cross-reactive with the CD4BS of
HIV-1 gp120.
DE Amino Acid Sequence Antigens, CD4/*METABOLISM Binding Sites/GENETICS
Binding, Competitive Consensus Sequence Cross Reactions Enzyme-Linked
Immunosorbent Assay/*METHODS Human HIV Antibodies/*ANALYSIS HIV
Envelope Protein gp120/GENETICS/*IMMUNOLOGY/METABOLISM HIV
Infections/IMMUNOLOGY HIV-1/GENETICS/*IMMUNOLOGY HIV-2/IMMUNOLOGY
Molecular Sequence Data Sequence Homology, Amino Acid Support,
Non-U.S. Gov't Time Factors JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).