Highly purified preparations of HBsAg are urgently needed for the production of hepatitis B diagnostic products and vaccines. The raw material for the production of HBsAg usually involves blood from HBsAg-positive carriers. In some countries, it is difficult to draw blood from such carriers due to l
Purification of skeletal-muscle mitochondria by density-gradient centrifugation with Percoll
โ Scribed by James R. Mickelson; Marion L. Greaser; B.Bruce Marsh
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 864 KB
- Volume
- 109
- Category
- Article
- ISSN
- 0003-2697
No coin nor oath required. For personal study only.
โฆ Synopsis
Mitochondria
prepared from skeletal muscle are typically contaminated with sarcoplasmic reticulum fragments and salt-soluble proteins.
These contaminants can be removed by density-gradient centrifugation in Percoll.
The resulting mitochondria retain both their original state three respiratory rates and their respiratory control ratios. The method has also been adapted to prepare mitochondria from very small tissue samples.
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Isopycnic banding by density gradient centrifugation was used to measure density changes in complexes formed by the interaction between antigen and antibody immobilized on polystyrene latex beads (diameter, 0.109 +/- 0.0025 micron). Measurements of density changes allowed calculation of the interact