Mechanisms of excitation and adaptation in Dictyostelium.

G. S. Pitt, R. E. Gundersen, P. N. Devreotes

Research output: Contribution to journalReview articlepeer-review

5 Scopus citations


A G-protein linked signal transduction mechanism controls chemotaxis in eukaryotes. During development the social amoeba Dictyostelium directs chemotaxis towards external cAMP with its G-protein linked cAMP receptor. Interactions of the receptor and G-proteins transduce the chemotactic signal to the interior of the cell and eventually to the motor apparatus. Phosphorylation of the cAMP receptor has been correlated with the cell's ability to adapt to the external cAMP signal. This signal transduction pathway may help to explain the ability of eukaryotic cells to orient within a chemical gradient by the use of spatial cues.

Original languageEnglish (US)
Pages (from-to)99-104
Number of pages6
JournalSeminars in Cell Biology
Issue number2
StatePublished - Apr 1990

ASJC Scopus subject areas

  • General Medicine


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