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 25 June 1965:
Vol. 148. no. 3678, pp. 1739 - 1741
DOI: 10.1126/science.148.3678.1739
Prev | Table of Contents | Next

Articles

Configuration of Inactive and Active Polysomes of the Developing Down Feather

E. Bell 1, Tom Humphreys 1, H. S. Slayter 1, and C. E. Hall 1

1 Department of Biology, Massachusetts Institute of Technology, Cambridge 02139

Inactive four-ribosome polyribosomes, insensitive to ribonuclease, have the form of tight symmetrical squares and appear in feather cells during the early and intermediate periods of development. When, on the 13th day of incubation, the inactive polyribosomes become sensitive to ribonuclease and can then synthesize protein, the squares open up so that the four-ribosome polysomes are strung out in the configuration characteristic of functioning polysomes.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Rate of Protein Synthesis: Regulation during First Division Cycle of Sea Urchin Eggs.
W. H. Sofer, J. F. George, and R. M. Iverson (1966)
Science 153, 1644-1645
   Abstract »    PDF »
Hypophyseal Control of Genetic Expression during Chick Feather and Skin Differentiation.
M. B. Yatvin (1966)
Science 153, 184-185
   Abstract »    PDF »


To Advertise     Find Products

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