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Crystal and solution structural studies of mouse phospholipid hydroperoxide glutathione peroxidase 4.


ABSTRACT: The mammalian glutathione peroxidase (GPx) family is a key component of the cellular antioxidative defence system. Within this family, GPx4 has unique features as it accepts a large class of hydroperoxy lipid substrates and has a plethora of biological functions, including sperm maturation, regulation of apoptosis and cerebral embryogenesis. In this paper, the structure of the cytoplasmic isoform of mouse phospholipid hydroperoxide glutathione peroxidase (O70325-2 GPx4) with selenocysteine 46 mutated to cysteine is reported solved at 1.8?Å resolution using X-ray crystallography. Furthermore, solution data of an isotope-labelled GPx protein are presented.

SUBMITTER: Janowski R 

PROVIDER: S-EPMC5053159 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature

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Crystal and solution structural studies of mouse phospholipid hydroperoxide glutathione peroxidase 4.

Janowski Robert R   Scanu Sandra S   Niessing Dierk D   Madl Tobias T  

Acta crystallographica. Section F, Structural biology communications 20160922 Pt 10


The mammalian glutathione peroxidase (GPx) family is a key component of the cellular antioxidative defence system. Within this family, GPx4 has unique features as it accepts a large class of hydroperoxy lipid substrates and has a plethora of biological functions, including sperm maturation, regulation of apoptosis and cerebral embryogenesis. In this paper, the structure of the cytoplasmic isoform of mouse phospholipid hydroperoxide glutathione peroxidase (O70325-2 GPx4) with selenocysteine 46 mu  ...[more]

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