doi: 10.1016/0014-5793(91)81219-x.
Distribution of glutathione peroxidases and glutathione reductase in rat brain mitochondria
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- PMID: 1915888
- DOI: 10.1016/0014-5793(91)81219-x
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Distribution of glutathione peroxidases and glutathione reductase in rat brain mitochondria
FEBS Lett.
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Abstract
The distribution of glutathione reductase (GR), glutathione peroxidase (GPx) and phospholipid hydroperoxide glutathione peroxidase (PHGPx) in isolated rat brain mitochondria was investigated, using a fractionation procedure for the separation of inner and outer membranes, contact sites between the two membranes and a soluble fraction mainly originating from the mitochondrial matrix. The data indicate that GR and GPx are concentrated in the soluble fraction, with a minor portion of the two enzymes being associated with the contact sites. PHGPx is localized largely in the inner membrane. The possible functional significance of these findings is discussed.
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