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M9650468.TXT
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1996-03-09
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Document 0468
DOCN M9650468
TI Major antigenic region on the integrase (IN) protein of human
immunodeficiency virus type 1 determined by reactivity of human sera and
a monoclonal antibody to IN protein.
DT 9605
AU Tachibana Y; Yasuda A; Kurata T; Oka S; Shimada K; Kojima A; Department
of Pathology, National Institute of Health, Tokyo,; Japan.
SO Clin Diagn Lab Immunol. 1994 Nov;1(6):678-83. Unique Identifier :
AIDSLINE MED/96050890
AB The gene encoding the integrase (IN) protein of human immunodeficiency
virus type 1 (HIV-1) was expressed in vaccinia virus and Escherichia
coli, and sera from 55 HIV-1-infected individuals were examined for
immunoreactivity to the recombinant IN proteins by Western immunoblot.
Approximately 98% (54 of 55) of the HIV-1-infected individuals showed
reactivity to both the full-length IN protein of 32 kDa (IN32 protein)
and the carboxy-terminal portion of the IN protein (IN17 protein). Serum
samples from only 6 of the 54 antibody-positive individuals and a
monoclonal antibody against the IN protein, 6F4, reacted with the
amino-terminal portion of the IN protein (IN15 protein). The eight AIDS
patients tested were seronegative to IN15 protein. The magnitude of
reactivity to the recombinant IN proteins decreased slightly in the
progression of the course of HIV-1 infection. These results suggest that
a B-cell immunodominant epitope(s) on the IN protein is located on the
C-terminal IN17 portion and that a minor epitope(s) recognizable by 6F4
and by rare patients is on the N-terminal IN15 portion.
DE Amino Acid Sequence Antibodies, Monoclonal/IMMUNOLOGY Antibody
Specificity Base Sequence Blotting, Western DNA
Nucleotidyltransferases/CHEMISTRY/GENETICS/*IMMUNOLOGY
Epitopes/IMMUNOLOGY Human HIV Antigens/BLOOD/IMMUNOLOGY
HIV-1/*IMMUNOLOGY Molecular Sequence Data Recombinant
Proteins/IMMUNOLOGY Virus Integration/GENETICS/*IMMUNOLOGY JOURNAL
ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).