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PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1995-11-30
pubmed:abstractText
Human T-lymphotropic virus type 1 (HTLV-I) is a retrovirus associated with adult T-cell leukemia/lymphoma, and the virus infection constitutes a growing public health problem. In a continuing effort to engineer conformationally dependent HTLV-I epitopes that elicit a protective immune response, we have examined the role and functional importance of carbohydrate moieties in specific immune recognition and antibody responses. There have been several reports of the importance of N-linked virus glycosylation in the formation of neutralizing antibodies. Residues 230-257 is predicted to encode two beta-turn/loop regions at 240-244 (LYGPN), 248-257 (VPSSSSTPL) and a glycosylation site at N-244 (NVS). We have successfully engineered and synthesized the 233-253 sequence of gp46 of HTLV-1 with and without GlcNAC at Asn244. Circular dichroism spectroscopy and proton NMR showed the presence of beta-turn conformation in both peptide constructs. Chimeras of the glycosylated and non-glycosylated epitope with promiscuous T-cell epitope were synthesized and shown to elicit high titered antibodies in rabbits specific for the immunogen (SC1MVF and SC2MVF) and the B cell epitope 233-253. Additionally, antibodies to the glycosylated form of the peptide recognized the HTLV-I envelope precursor in radioimmunoassay precipitation assay and react with HTLV-I whole virus preparations in ELISA.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0887-6924
pubmed:author
pubmed:issnType
Print
pubmed:volume
9 Suppl 1
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
S133-8
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:7475306-Adult, pubmed-meshheading:7475306-Amino Acid Sequence, pubmed-meshheading:7475306-Animals, pubmed-meshheading:7475306-Antibodies, pubmed-meshheading:7475306-Antibody Formation, pubmed-meshheading:7475306-Enzyme-Linked Immunosorbent Assay, pubmed-meshheading:7475306-Epitopes, pubmed-meshheading:7475306-Gene Products, env, pubmed-meshheading:7475306-Genes, env, pubmed-meshheading:7475306-Glycopeptides, pubmed-meshheading:7475306-Glycosylation, pubmed-meshheading:7475306-Human T-lymphotropic virus 1, pubmed-meshheading:7475306-Humans, pubmed-meshheading:7475306-Leukemia, T-Cell, pubmed-meshheading:7475306-Magnetic Resonance Spectroscopy, pubmed-meshheading:7475306-Molecular Sequence Data, pubmed-meshheading:7475306-Peptide Fragments, pubmed-meshheading:7475306-Rabbits, pubmed-meshheading:7475306-Retroviridae Proteins, Oncogenic
pubmed:year
1995
pubmed:articleTitle
Glycosylation-dependent peptide antigenic determinants of env gp46 HTLV-1.
pubmed:affiliation
Department of Obstetrics & Gynecology, College of Medicine, Ohio State University, Columbus 43210, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.