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Autophosphorylation of boar sperm membranes
Authors:M Nikolopoulou  D A Soucek  J C Vary
Abstract:Boar sperm plasma membranes and the membranes released during an in vitro acrosome-like reaction were capable of autophosphorylation. The purified membranes were incubated in Tyrode's buffer containing 32P]ATP with or without Ca2+ and/or diacylglycerol. In both membrane fractions, Ca2+ plus diacylglycerol stimulated the autophosphorylation of several sperm membrane proteins. These results suggest a protein kinase C activity is present in sperm membranes and could play a role in the acrosome reaction.
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