The Journal of Cell Biology, Vol 74, 789-793, Copyright © 1977 by The Rockefeller University Press

ARTICLES

Retention of amylase in the secretory granules of parotid gland after extensive release of Ca++ by ionophore A-23187

Y Flashner and M Schramm

The effect of the ionophore A-23187 was tested on isolated secretory granules of rat parotid gland. The ionophore caused extensive release of calcium from the granules without effecting release of amylase or other secretory proteins. It is therefore concluded that the role of calcium in the granules is probably not that of a stabilizing agent.
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