Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.febslet.2006.10.003
Title: Pfnek3: An atypical activator of a MAP kinase in Plasmodium falciparum
Authors: Lye, Y.M.
Chan, M. 
Sim, T.-S. 
Keywords: Erythrocytic-stage
Malaria
Plasmodium
Protein kinase
Issue Date: 2006
Source: Lye, Y.M., Chan, M., Sim, T.-S. (2006). Pfnek3: An atypical activator of a MAP kinase in Plasmodium falciparum. FEBS Letters 580 (26) : 6083-6092. ScholarBank@NUS Repository. https://doi.org/10.1016/j.febslet.2006.10.003
Abstract: The canonical mitogen-activated protein kinase (MAPK) signal cascade was previously suggested to be atypical in the malaria parasite. This raises queries on the existence of alternative mediators of plasmodial MAPK pathways. This study describes, Pfnek3, a malarial protein kinase belonging to the NIMA (Never in Mitosis, Aspergillus) family. Endogenous Pfnek3 is expressed during late asexual to gametocyte stages and lacks some classical protein kinase sequence motifs. Moreover, Pfnek3 is phylogenetically distant from mammalian NIMA-kinases. Recombinant Pfnek3 was able to phosphorylate and stimulate a malarial MAPK (Pfmap2). Contrastingly, this was not observed with two other kinases, Pfmap1 and human MAPK1, suggesting that the Pfnek3-Pfmap2 interaction may be specific for Pfmap2 regulation. In summary, our data reveal a malarial NIMA-kinase with the potential to regulate a MAPK. Possessing biochemical properties divergent from classical mammalian NIMA-kinases, Pfnek3 could potentially be an attractive target for parasite-selective anti-malarials. © 2006 Federation of European Biochemical Societies.
Source Title: FEBS Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/24654
ISSN: 00145793
DOI: 10.1016/j.febslet.2006.10.003
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