title: Calcium dependent protein kinase 1 and calcium fluxes in the malaria parasite.
abstract: Calcium dependent protein kinases (CDPKs) are found only in plants and alveolates and are distinguished from other kinases by an activation domain that binds calcium directly. Plants contain families of these kinases and their functions are modulated by post translational modifications as well as calcium activation. Apicomplexan parasites also contain CDPK families and this review is focused on CDPK1 in Plasmodium spp. This enzyme has been implicated in parasite motility and host cell invasion and at least two substrates associated with the actomyosin motor complex have been identified. By analogy with the plant CDPKs we propose that its activity is modulated both by post translational modifications and by its subcellular location in a compartment within the parasite's pellicle, which may regulate the calcium concentration required for activation.
authors.affiliation: Division of Parasitology, MRC National Institute for Medical Research, The Ridgeway, Mill Hill, London NW7 1AA, UK. aholder@nimr.mrc.ac.uk
authors.forename: Anthony A
authors.initials: AA
authors.lastname: Holder
authors.forename: Mohd A
authors.initials: MA
authors.lastname: Mohd Ridzuan
authors.forename: Judith L
authors.initials: JL
authors.lastname: Green
mesh_terms: D000205:Actomyosin / Q000378:metabolism; D002118:Calcium / Q000378:metabolism*; D010963:Plasmodium falciparum / Q000201:enzymology* / Q000378:metabolism*; D011494:Protein Kinases / Q000378:metabolism*; D011499:Protein Processing, Post-Translational; D015800:Protozoan Proteins / Q000378:metabolism*
chemical_list: D015800:Protozoan Proteins; D000205:Actomyosin; D011494:Protein Kinases; C531238:calcium-dependent protein kinase-1, Plasmodium falciparum; D002118:Calcium