Calmodulin and calmodulin-binding proteins in plants

Raymond E. Zielinski

Research output: Contribution to journalArticlepeer-review


Calmodulin is a small Ca2+-binding protein that acts to transduce second messenger signals into a wide array of cellular responses. Plant calmodulins share many structural and functional features with their homologs from animals and yeast, but the expression of multiple protein isoforms appears to be a distinctive feature of higher plants. Calmodulin acts by binding to short peptide sequences within target proteins, thereby inducing structural changes, which alters their activities in response to changes in intracellular Ca2+ concentration. The spectrum of plant calmodulin-binding proteins shares some overlap with that found in animals, but a growing number of calmodulin-regulated proteins in plants appear to be unique. Ca2+-binding and enzymatic activation properties of calmodulin are discussed emphasizing the functional linkages between these processes and the diverse pathways that are dependent on Ca2+ signaling.

Original languageEnglish (US)
Pages (from-to)697-725
Number of pages29
JournalAnnual Review of Plant Biology
StatePublished - 1998


  • Calcium binding
  • Gene expression
  • Protein-protein interaction
  • Regulation
  • Signal transduction

ASJC Scopus subject areas

  • Physiology
  • Molecular Biology
  • Plant Science
  • Cell Biology


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