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2003 JUL 9 - (NewsRx.com & NewsRx.net) -- A modified plasmodial peptide could be the basis for a malaria vaccine.
"The conserved, nonantigenic, nonimmunogenic malaria merozoite surface protein-2 peptide 1, having high affinity for red blood cells, was rendered immunogenic and protective in Aotus monkeys by specifically changing some critical residues," according to G. Cifuentes and colleagues at the Fundacion Instituto de Inmunologia de Colombia.
"The NMR structure revealed a switch from classical type III' into distorted III' and III beta turns in the protective peptides," they reported.
"These changes may lead to a better fit into the Aotus MHC class II human HLA-DRbeta1*0102 molecule equivalent, thus activating the immune system," the ...