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Echinobase
ECB-ART-30755
J Exp Zool 1976 Oct 01;1981:39-47. doi: 10.1002/jez.1401980106.
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Phospholipase activity of sea urchin sperm: its possible involvement in membrane fusion.

Conway AF , Metz CB .


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Phospholipase activity of egg-water treated Arbacia punctulata and Lytechinus variegatus sperm was shown to result from the sequential action of phospholipase A and lysophospholipase. A transient burst of phospholipase A activity followed induction of the acrosome reaction with egg water. The time of appearance suggested an acrosomal localization of the enzyme. The peak activity of phospholipase A correlated with initiation of sperm-egg fusion, suggesting a role for sea urchin sperm phospholipase A in membrane fusion and/or egg activation during fertilization.

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Genes referenced: LOC100887844