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.

Site Tools

  • AAAS
  • Subscribe
  • Feedback

Site Search

Search Advanced

Science 12 August 1977:
Vol. 197. no. 4304, pp. 659 - 660
DOI: 10.1126/science.877578
Prev | Table of Contents | Next

Articles

Science, Vol 197, Issue 4304, 659-660
Copyright © 1977 by American Association for the Advancement of Science

articles

Porphyrin induction: equivalent effects of 5alphaH and 5betaH steroids in chick embryo liver cells

JK Stephens, PW Fischer, and GS Marks

The 5alphaH (A : B trans) and 5betaH (A : B cis) steroids are equipotent in inducing delta-aminolevulinic acid synthetase and porphyrin accumulation in chick embryo liver cells maintained in serum-free culture medium. Thus there is no specific steric requirement for porphyrin-inducing activity in steroids.




To Advertise     Find Products

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