Identification of Plasmodium knowlesi Merozoite Surface Protein‐119 (PkMSP‐119) novel binding peptides from a phage display library

Goh, Xiang Ting; Chua, Kek Heng; Kee, Boon Pin; Lim, Yvonne Ai Lian

doi:10.1111/tmi.13348

Cited by 3 publications

(1 citation statement)

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“…Instead, the conserved blocks, particularly the 42-kDa subunit of PkMSP-1 (PkMSP-1 42 ), was studied as a potential vaccine candidate. Recent findings revealed novel binding peptides against the C-terminal of PkMSP-1 19 [ 63 , 64 ]. This further aids the vaccine development or peptide-based anti-malarial drug formulation, and it is in line with the objectives of the One Health initiative to intervene and mitigate the endemic zoonotic infection caused by P. knowlesi via activities, including vaccine development.…”

Section: Discussionmentioning

confidence: 99%

Inter-Population Genetic Diversity and Clustering of Merozoite Surface Protein-1 (pkmsp-1) of Plasmodium knowlesi Isolates from Malaysia and Thailand

et al. 2023

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The genetic diversity of pkmsp-1 of Malaysian Plasmodium knowlesi isolates was studied recently. However, the study only included three relatively older strains from Peninsular Malaysia and focused mainly on the conserved blocks of this gene. In this study, the full-length pkmsp-1 sequence of recent P. knowlesi isolates from Peninsular Malaysia was characterized, along with Malaysian Borneo and Thailand pkmsp-1 sequences that were retrieved from GenBank. Genomic DNA of P. knowlesi was extracted from human blood specimens and the pkmsp-1 gene was PCR-amplified, cloned, and sequenced. The sequences were analysed for genetic diversity, departure from neutrality, and geographical clustering. The pkmsp-1 gene was found to be under purifying/negative selection and grouped into three clusters via a neighbour-joining tree and neighbour net inferences. Of the four polymorphic blocks in pkmsp-1, block IV, was most polymorphic, with the highest insertion–deletion (indel) sites. Two allelic families were identified in block IV, thereby highlighting the importance of this block as a promising genotyping marker for the multiplicity of infection study of P. knowlesi malaria. A single locus marker may provide an alternate, simpler method to type P. knowlesi in a population.

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Section: Discussionmentioning

confidence: 99%