Characteristics of the adenohypophyseal Ca2+-phospholipid-dependent protein kinase

Judith L Turgeon, S. J H Ashcroft, D. W. Waring, M. A. Milewski, D. A. Walsh

Research output: Contribution to journalArticlepeer-review

41 Scopus citations


The Ca2+-phospholipid-dependent protein kinase, initially described by Takai et al. (J. Biol. Chem. 254, 3692-3695, 1979), has been identified in the anterior pituitary gland of the rat and sheep. The enzyme is essentially undetectable in initial cell extracts but marked activity is manifest following DEAE chromatography, suggesting the potential presence of an endogenous inhibitor of this enzyme. Two forms of this protein kinase exist in both sheep and rat anterior pituitary gland, both of which are similarly dependent upon Ca2+, phosphatidyl serine and diacylglycerol. Several endogenous substrates for this protein kinase have been observed in both the pars distalis and pars tuberalis of the sheep adenohypophysis.

Original languageEnglish (US)
Pages (from-to)107-112
Number of pages6
JournalMolecular and Cellular Endocrinology
Issue number2
StatePublished - 1984


  • anterior pituitary gland
  • Ca -phospholipid-dependent protein kinase
  • protein phosphorylation

ASJC Scopus subject areas

  • Endocrinology
  • Endocrinology, Diabetes and Metabolism


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