Mitochondrial-Satellite and Circular DNA Filaments in Yeast
- 2 June 1967
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 156 (3779) , 1234-1237
- https://doi.org/10.1126/science.156.3779.1234
Abstract
Mitochondrial DNA of Saccharomyces cerevisiae contains a satellite DNA (density, 1.682) that appears to exist as open-ended filaments at least 5 microns long. DNA from intact cells contains circular filaments whose lengths vary from 0.5 to 7 microns, with a great majority at 1.95 microns. The circular DNA has a density similar to that of the major nuclear peak (1.697). When heat-denatured mitochondrial-satellite DNA is renatured, it cross-links to form a molecule that is larger than the native molecule. The formation of cross-links results in hypersharpening of the density profiles in cesium chloride and also leads to failure to pass Millipore filter paper.This publication has 12 references indexed in Scilit:
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