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Cited by 256

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Calcium/phospholipid regulates phosphorylation of a Mr "87k" substrate protein in brain synaptosomes.

Open access
Wu, W C, Walaas, S I, Nairn, A C, Greengard, P·1982·Proceedings of the National Academy of Sciences

Abstract

Depolarization-induced calcium influx into rat cerebral cortex synaptosomes increased the phosphorylation of several synaptosomal proteins as examined by 32Pi incorporation. A phosphopeptide mapping technique involving NaDodSO4/polyacrylamide gels has been used to show that phosphorylation of a Mr 87,000 substrate protein is stimulated by depolarization-induced calcium influx. Phosphorylation of this Mr 87,000 substrate occurred in synaptosomal cytosol and was markedly stimulated by calcium/phosphatidylserine. Calmodulin inhibited this phosphorylation reaction. This substrate for calcium/phospholipid-dependent protein kinase is enriched in and appears to be specific to neurons.

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Metadata

Authors
Wu, W. C., Walaas, S. I., Nairn, A. C., & Greengard, P.
Venue
Proceedings of the National Academy of Sciences
Published
1982-09
Volume
79
Issue
17
Pages
5249-5253
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2042251760
Cited by
256
References
0
FWCI
4.58
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Calcium/phospholipid regulates phosphorylation of a Mr "87k" substrate protein in brain synaptosomes. https://app.cochat.ai/papers/10.1073/pnas.79.17.5249
The paper
Wu, W. C., Walaas, S. I., Nairn, A. C., & Greengard, P. (1982). Calcium/phospholipid regulates phosphorylation of a Mr "87k" substrate protein in brain synaptosomes. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.79.17.5249

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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.