Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 5 February 1965:
Vol. 147. no. 3658, pp. 615 - 617
DOI: 10.1126/science.147.3658.615
Prev | Table of Contents | Next

Articles

Polysomes from Yeast: Distribution of Messenger RNA and Capacity to Support Protein Synthesis in vitro

Leon Marcus 1, Roger Bretthauer 1, Harlyn Halvorson 1, and Robert Bock 2

1 Department of Bacteriology, University of Wisconsin, Madison
2 Department of Biochemistry, University of Wisconsin

Individual fractions of polysomes were isolated from yeast. Pulse labeling experiments in vivo show constant specific activity of messenger RNA in each polysome peak; this suggests a uniform density of ribosomes per unit length of messenger RNA. In the cell-free incorporating system, the amount of peptide per ribosome unit increased with the size of polysome.

To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)