Characterization of class II apurinic/apyrimidinic endonuclease activities in the human malaria parasite, Plasmodium falciparum
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چکیده
منابع مشابه
Targeting NAD+ Metabolism in the Human Malaria Parasite Plasmodium falciparum
Nicotinamide adenine dinucleotide (NAD+) is an essential metabolite utilized as a redox cofactor and enzyme substrate in numerous cellular processes. Elevated NAD+ levels have been observed in red blood cells infected with the malaria parasite Plasmodium falciparum, but little is known regarding how the parasite generates NAD+. Here, we employed a mass spectrometry-based metabolomic approach to...
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Methods to transiently and stably transfect blood stages of the human malaria parasite Plasmodium falciparum have been developed and adapted for gene-knockout, allelic replacement, and transgene expression in this organism. These methods are detailed in this chapter, as are approaches used to monitor transfectants during the selection process. The different plasmid vectors that are currently us...
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Plasmodium falciparum in culture grows optimally at 3% oxygen. Oxygen levels down to 0.5% still support growth, but anaerobic conditions do not. These findings, and the absence of the Krebs cycle in Plasmodium, suggested that in this organism oxygen may not function in electron transport but rather may act through metalloprotein oxygenases. Tetraethylthiuram disulfide (Antabuse, disulfiram) and...
متن کاملProtein tyrosine kinase activity in human malaria parasite Plasmodium falciparum.
Protein tyrosine kinases (PTKs) are believed to be implicated in the parasite growth, maturation and differentiation functions. Protein tyrosine kinase activity was found to be distributed in all the stages of P. falciparum parasite maturation. Membrane bound PTK activity was found to be increased during maturation process (ring stage to trophozoite stage) in chloroquine sensitive strains. In v...
متن کاملFate of haem iron in the malaria parasite Plasmodium falciparum.
Chemical analysis has shown that Plasmodium falciparum trophozoites contain 61+/-2% of the iron within parasitized erythrocytes, of which 92+/-6% is located within the food vacuole. Of this, 88+/-9% is in the form of haemozoin. (57)Fe-Mössbauer spectroscopy shows that haemozoin is the only detectable iron species in trophozoites. Electron spectroscopic imaging confirms this conclusion.
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1999
ISSN: 0264-6021,1470-8728
DOI: 10.1042/bj3450085