Adenylyl cyclase activity of the fission yeastSchizosaccharomyces pombeis not regulated by guanyl nucleotides
Open Access
- 26 February 1990
- journal article
- research article
- Published by Wiley in FEBS Letters
- Vol. 261 (2) , 413-418
- https://doi.org/10.1016/0014-5793(90)80605-i
Abstract
The adenylyl cyclase activity of the fission yeast Schizosaccharomyces pombe is localized to the plasma membrane of the cell. The enzyme utilizes Mn2+/ATP as substrate and free Mn2+ ions as an effector. Unlike the baker yeast Saccharomyces cerevisiae, S. pombe adenylyl cyclase does not utilize Mg2+/ATP as substrate and the activity is not stimulated by guanyl nucleotides. The optimal pH for the S. pombe adenylyl cyclase activity is 6.0. The activity dependence on ATP is cooperative with a Hill coefficient of 1.68 ± 0.14.Keywords
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