The Catalytic Subunits of Ser/Thr Protein Phosphatases from Caenorhabditis elegans

Tamás Zeke, P. Gergely, V. Dombrádi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The catalytic activities of protein phosphatase 1, 2A, 2B, and 2C were detected in crude extracts of Caenorhabditis elegans with different phosphoprotein substrates and specific inhibitors or activators. The enzymological properties of protein phosphatase 2B as well as those of the catalytic subunits of protein phosphatase 1 and protein phosphatase 2A were determined after partial purification. Gene fragments encoding the catalytic subunits of the protein phosphatase 1-2A-2B superfamily were amplified by polymerase chain reaction and were identified by DNA sequencing. Besides the homologs of protein phosphatase 1, 2B, and X, five protein phosphatase 1-type sequences and four novel protein phosphatase sequences were found. Our data, together with the results of the C. elegans genome project, suggest that this nematode contains an extensive family of Ser/Thr specific protein phosphatases including several up to now biochemically uncharacterized members. Copyright (C) 1998 Elsevier Science Inc. All rights reserved.

Original languageEnglish
Pages (from-to)317-324
Number of pages8
JournalComparative Biochemistry and Physiology - B Biochemistry and Molecular Biology
Volume119
Issue number2
DOIs
Publication statusPublished - 1998

Fingerprint

Protein Phosphatase 1
Phosphoprotein Phosphatases
Caenorhabditis elegans
Catalytic Domain
Protein Phosphatase 2
Calcineurin
Gene encoding
Phosphoproteins
Polymerase chain reaction
Complex Mixtures
DNA Sequence Analysis
Purification
Catalyst activity
Genes
Genome
Polymerase Chain Reaction
DNA
Substrates

Keywords

  • Caenorhabditis elegans
  • DNA sequencing
  • Polymerase chain reaction
  • Protein phosphatase activity
  • Protein phosphatase genes

ASJC Scopus subject areas

  • Biochemistry
  • Physiology

Cite this

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