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ECB-ART-30568
Mol Cell Biochem 1978 Nov 16;213:139-43. doi: 10.1007/bf00240132.
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Isolation and partial characterization of a mitochondrial deoxyribonucleic acid-protein complex from sea urchin embryos.

Sevaljević L , Petrović LS , Rickwood D .


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Lysis of mitochondria from sea urchin embryos with Triton X-100 led to a complete conversion of DNA-containing mitochondrial residues into protein-DNA complex with a density higher than 1.22 g/cm3 in sucrose solutions. This complex banded isopycnically in metrizamide gradients at a density of 1.26 g/cm3. Exposure to mixtures of Triton X-100 with Tween 80 resulted in progressively less delipitated and disorganized mitochondria over Tween/Triton weight ratios from 1 to 2, with the retention of the starting buoyant density in sucrose of approximately 1.16 g/cm3 at Tween/Triton ratios above 2.5. The DNA-internal protein complex sedimented with the bulk of the surviving mitochondrial structure under all conditions studied. No free DNA could be detected under any conditions of membrane removal.

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Genes referenced: LOC100887844

References [+] :
Aloni, Expression of the mitochondrial genome in HeLa cells. XI. Isolation and characterization of transcription complexes of mitochondrial DNA. 1972, Pubmed