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 3 March 1978:
Vol. 199. no. 4332, pp. 990 - 991
DOI: 10.1126/science.203037
Prev | Table of Contents | Next

Articles

Science, Vol 199, Issue 4332, 990-991
Copyright © 1978 by American Association for the Advancement of Science

articles

Cyclic adenosine monophosphate production by embryonic chick cells

A Robertson, JF Grutsch, and AR Gingle

Cells dissociated from 1-day-old chick embryos produce a pulse of cyclic adenosine monophosphate (cyclic AMP) when stimulated with cyclic AMP. There is a stimulus threshold concentration of about 10(-8) molar cyclic AMP and an upper limit, above which the response is suppressed, of about 6 X 10(-6) molar. The response occurs within 5 seconds of stimulation and corresponds to an average pulse size in the range of 10(7) molecules per cell.




To Advertise     Find Products

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