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Intraneuronal Guanylyl-imidodiphosphate Injection Mimics Long-term Synaptic Hyperpolarization in Aplysia

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Specialty Science
Date 1976 Dec 1
PMID 188052
Citations 6
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Abstract

The phosphodiesterase (3':5'-cyclic AMP 5'-nucleotidohydrolase, EC 3.1.4.17) inhibitor thepohylline enhances both the amplitude and duration of a long-lasting synaptic hyperpolarization in identified neuron R15 in Aplysia californica. Intraneuronal injection into R15 of glanylyl-imidodiphosphate, an adenylate cyclase [ATP pyrophosphate-lyase (cyclizing), EC 4.6.1.1] activator, results in a deep and long-lasting hyperpolarization of the cell, similar to that produced by synaptic stimulation. Biochemical analysis confirms that guanylyl-imidodiphosphate activates adenylate cyclase in Aplysia californica nervous tissue, without affecting phosphodiesterase activity. These observations suggest that adenosine 3':5'-cyclic monophosphate plays a role in long-lasting synaptic inhibition and are consistent with a post-synaptic site of action for adenosine 3':5'-cyclic monophosphate.

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References
1.
Lefkowitz R . Stimulation of catecholamine-sensitive adenylate cyclase by 5'-guanylyl-imidodiphosphate. J Biol Chem. 1974; 249(19):6119-24. View

2.
Treistman S, Schwartz J . Injection of radioactive materials into an identified axon of Aplysia. Brain Res. 1974; 68(2):358-64. DOI: 10.1016/0006-8993(74)90405-3. View

3.
Parnas I, Armstrong D, Strumwasser F . Prolonged excitatory and inhibitory synaptic modulation of a bursting pacemaker neuron. J Neurophysiol. 1974; 37(4):594-608. DOI: 10.1152/jn.1974.37.4.594. View

4.
Ifshin M, Gainer H, Barker J . Peptide factor extracted from molluscan ganglia that modulates bursting pacemaker activity. Nature. 1975; 254(5495):72-4. DOI: 10.1038/254072a0. View

5.
Schramm M, Rodbell M . A persistent active state of the adenylate cyclase system produced by the combined actions of isoproterenol and guanylyl imidodiphosphate in frog erythrocyte membranes. J Biol Chem. 1975; 250(6):2232-7. View