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Mitochondrial DNA (mtDNA)-protein complexes were released from the organelles by sodium dodecyl sulfate-lysis and purified by Phenyl-Sepharose CL-4B chromatography. The mitochondrial DNA-binding protein P16 was the only detectable protein in the complex. Treatment of the complex with proteinase K, or subtilisin, revealed the presence of a(More)
The mitochondrial DNA-binding protein P16 was isolated from rat liver mitochondrial lysates by affinity chromatography on single strand DNA agarose and separated from DNA in the preparation by alkaline CsCl isopycnic gradients. The top fraction of the gradients contained a single polypeptide species (Mr approximately equal to 15,200) based upon SDS PAGE.(More)
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