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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1995-8-9
pubmed:abstractText
We have assessed the oligomeric structure and antigenic properties of an affinity purified gp160 protein (oligo-gp160) using biosensor technology. Sucrose gradient purification analysis identified the existence of tetrameric, dimeric and monomeric forms of the protein. Reactivity to a broad panel of monoclonal antibodies specific for oligomeric gp160, discontinuous epitopes within monomeric gp120 and several linear epitopes within gp120 (V3) and gp41 was demonstrated. International sera from several countries, where HIV-1 clades A-F are prevalent, including type O from Cameroon, were reactive with oligo-gp160 indicating conserved antigenic epitopes. Enhanced immunologic reactivity per gp160 molecule was obtained with oligo-gp160 as compared to other current HIV-1(IIIB) subunit monomeric envelope gp120/gp160 immunogens suggesting higher HIV-1 envelope protein mimicry. HIV-1 antibodies from sera during acute HIV-1 infection were detectable by oligo-gp160 prior to detection with either a recombinant, monomeric gp120 protein or several commercial HIV-1 screening kits suggesting antibodies sensitive to oligomeric gp160 structure may be present earlier in infection. The oligomeric nature of this gp160 protein preparation and high reactivity with divergent mAbs and HIV-1 sera support the use of this protein as an HIV-1 immunogen.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0022-1759
pubmed:author
pubmed:issnType
Print
pubmed:day
14
pubmed:volume
183
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
103-17
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Characterization of a soluble, oligomeric HIV-1 gp160 protein as a potential immunogen.
pubmed:affiliation
Division of Retrovirology, Walter Reed Army Institute of Research, Rockville, MD 20850, USA.
pubmed:publicationType
Journal Article