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Purification, crystallization and preliminary X-ray diffraction analysis of pyridoxal kinase from Plasmodium falciparum (PfPdxK).


ABSTRACT: Pyridoxal kinases (PdxK) catalyze the phosphorylation of vitamin B6 precursors. Thus, these enzymes are an essential part of many metabolic processes in all organisms. The protozoan parasite Plasmodium falciparum (the main causative agent of Malaria tropica) possesses a unique de novo B6-biosynthesis pathway in addition to a interconversion pathway based on the activity of plasmodial PdxK (PfPdxK). The role of PdxK in B6 salvage has prompted previous authors to suggest PdxK as a promising target for structure-based antimalarial drug design. Here, the expression, purification, crystallization and preliminary X-ray diffraction analysis of PfPdxK are reported. PfPdxK crystals have been grown in space group P2?, with unit-cell parameters a=52.7, b=62.0, c=93.7?Å, ?=95°. A data set has been collected to 2?Å resolution and an initial molecular-replacement solution is described.

SUBMITTER: Kronenberger T 

PROVIDER: S-EPMC4231864 | biostudies-literature | 2014 Nov

REPOSITORIES: biostudies-literature

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Purification, crystallization and preliminary X-ray diffraction analysis of pyridoxal kinase from Plasmodium falciparum (PfPdxK).

Kronenberger Thales T   Lunev Sergey S   Wrenger Carsten C   Groves Matthew R MR  

Acta crystallographica. Section F, Structural biology communications 20141025 Pt 11


Pyridoxal kinases (PdxK) catalyze the phosphorylation of vitamin B6 precursors. Thus, these enzymes are an essential part of many metabolic processes in all organisms. The protozoan parasite Plasmodium falciparum (the main causative agent of Malaria tropica) possesses a unique de novo B6-biosynthesis pathway in addition to a interconversion pathway based on the activity of plasmodial PdxK (PfPdxK). The role of PdxK in B6 salvage has prompted previous authors to suggest PdxK as a promising target  ...[more]

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