Literature DB >> 2994664

Phospholipid methyltransferase phosphorylation by intact hepatocytes: effect of glucagon.

I Varela, I Mérida, M Villalba, F Vivanco, J M Mato.   

Abstract

We have obtained a rabbit antiserum that specifically immunoprecipitates the 50K and 25K proteins of rat liver phospholipid methyltransferase. Exposure of intact rat hepatocytes preincubated with [32P]phosphate to glucagon induces a time-dependent phosphorylation of the 50K protein of phospholipid methyltransferase. The incorporation of 32P into the 50K protein was only on phosphoserine. These data support the concept that the activation of rat liver phospholipid methyltransferase by glucagon is mediated by phosphorylation of the enzyme.

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Year:  1985        PMID: 2994664     DOI: 10.1016/0006-291x(85)91827-3

Source DB:  PubMed          Journal:  Biochem Biophys Res Commun        ISSN: 0006-291X            Impact factor:   3.575


  4 in total

1.  Purification of phospholipid methyltransferase from rat liver microsomal fraction.

Authors:  M A Pajares; M Villalba; J M Mato
Journal:  Biochem J       Date:  1986-08-01       Impact factor: 3.857

2.  Protein kinase C catalyses the phosphorylation and activation of rat liver phospholipid methyltransferase.

Authors:  M Villalba; M A Pajares; M F Renart; J M Mato
Journal:  Biochem J       Date:  1987-02-01       Impact factor: 3.857

3.  Phospholipid methyltransferase activity in diabetic rat fat cells: effect of isoproterenol and insulin.

Authors:  G E Chiappe de Cingolani
Journal:  Mol Cell Biochem       Date:  1992-09-22       Impact factor: 3.396

4.  Stimulation of adipocyte phospholipid methyltransferase activity by phorbol 12-myristate 13-acetate. Differential regulation of phospholipid methyltransferase and lipolysis.

Authors:  K L Kelly
Journal:  Biochem J       Date:  1987-02-01       Impact factor: 3.857

  4 in total

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