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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2000-4-24
pubmed:abstractText
We describe the design and synthesis of a novel well characterized multi-peptide conjugate (MPC) system containing antigens from human malaria parasite and the Tat protein of HIV type-1 (HIV-1-Tat). Construction of the MPC utilizes Fmoc solid-phase peptide synthesis coupled with solution chemistry. In the first phase, a core template that serves as primary anchor for the synthesis and attachment of multiple antigens is synthesized. Serine(trityl) and multiple lysine branches with epsilon groups blocked during chain assembly are incorporated forming a tetrameric core. Cysteine whose side chain thiol serves to couple haloacetyl or S-protected haloacetyl peptides is added to complete assembly of the core template. Modification to the coupling solvent, addition of key amino acid derivatives (N-[1-hydroxy-4-methoxybenzyl]) in the peptide sequence allows the synthesis of base peptides on the core template with molecular mass greater than 7500 kDa. Base peptides are then reacted with high performance liquid chromatography purified haloacetyl peptides to generate multiple peptide conjugates with molecular masses of 10 to 13 kDa. MPC constructs thus formed are further characterized by matrix assisted laser desorption-time of flight mass spectroscopy (MALDI-MS), amino acid analysis, size exclusion chromatography, and SDS-polyacrylamide gel electrophoresis (PAGE). To our knowledge, this is the first report describing a chemically well defined multiple conjugate system with potential for development of synthetic subunit vaccines.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0196-9781
pubmed:author
pubmed:issnType
Print
pubmed:volume
21
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
9-17
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Synthesis and construction of a novel multiple peptide conjugate system: strategy for a subunit vaccine design.
pubmed:affiliation
Laboratory of Parasitic Biology and Biochemistry, Division of Allergenic Products and Parasitology, Center for Biologics Evaluation and Research, Food and Drug Administration, 1401 Rockville Pike, Rockville, MD 20892, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't