Abstract
Complementary DNA clones that code for the immunogenic region of the Plasmodium knowlesi circumsporozoite protein were shown to contain a tandemly repeating 36-base pair unit. A synthetic dodecapeptide corresponding to the predicted reading frame of the repeating nucleotide unit behaved, in an immunoradiometric assay, identically with the native P. knowlesi circumsporozoite protein. The repeating 36-base pair unit occurred 12 times within the gene and accounts for at least one-third of the amino acid sequence of the surface antigen protein.
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Godson, G., Ellis, J., Svec, P. et al. Identification and chemical synthesis of a tandemly repeated immunogenic region of Plasmodium knowlesi circumsporozoite protein. Nature 305, 29–33 (1983). https://doi.org/10.1038/305029a0
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DOI: https://doi.org/10.1038/305029a0
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