Myomodulin application increases cAMP and activates cAMP-dependent protein kinase in the accessory radual closer muscle of Aplysia

S. L. Hooper, W. C. Probst, E. C. Cropper, I. Kupfermann, K. R. Weiss

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Myomodulin A (MMA) application or stimulation of neuron B16, which releases MMA, increases cAMP levels in the accessory radula closer (ARC) muscle of Aplysia. MMA application also increases cAMP-dependent protein kinase (cAPK) activity in one subcellular compartment of the muscle. These results suggest that at least part of MMA's effects in this system are mediated via the cAPK signal transduction pathway. Since the effects of the small cardioactive peptides (SCPs) on ARC muscle contraction are similar to those of MMA, our results suggest that the convergent physiological effects of MMA and SCPB in this system may be due, in part, to the two peptide neuromodulators utilizing the same signal transduction pathway.

Original languageEnglish
Pages (from-to)167-170
Number of pages4
JournalNeuroscience Letters
Volume179
Issue number1-2
DOIs
StatePublished - 26 Sep 1994

Keywords

  • Buccal
  • Buccalin
  • Invertebrate
  • Mollusc
  • Neuromodulation
  • PKA
  • Peptide
  • Second messenger
  • cAMP
  • cAPK

Fingerprint

Dive into the research topics of 'Myomodulin application increases cAMP and activates cAMP-dependent protein kinase in the accessory radual closer muscle of Aplysia'. Together they form a unique fingerprint.

Cite this