Identification as beta-adducin of a protein interacting with rabphilin-3A in the presence of Ca2+ and phosphatidylserine - PubMed (original) (raw)

. 1994 Nov 30;205(1):460-6.

doi: 10.1006/bbrc.1994.2688.

Affiliations

Identification as beta-adducin of a protein interacting with rabphilin-3A in the presence of Ca2+ and phosphatidylserine

M Miyazaki et al. Biochem Biophys Res Commun. 1994.

Abstract

Rabphilin-3A is a putative target protein for Rab3A small GTP-binding protein implicated in neurotransmitter release. We have previously identified a Rabphilin-3A-interacting protein with a Mr of about 115 kDa in bovine brain. We have attempted here to purify this protein and to determine its primary structure. Amino acid sequence analysis has revealed that this protein is a bovine counterpart of human beta-adducin which is known to be a good substrate for protein kinase C. The Rabphilin-3A-interacting protein also binds to protein kinase C in the presence of Ca2+ and phosphatidylserine. These results indicate that Rabphilin-3A binds to beta-adducin in the presence of Ca2+ and phosphatidylserine.

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