Title : DARPP-32 phosphorylation opposes the behavioral effects of nicotine.

Pub. Date : 2005 Dec 15

PMID : 16084497






6 Functional Relationships(s)
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Protein Name
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1 DARPP-32 phosphorylation opposes the behavioral effects of nicotine. Nicotine protein phosphatase 1, regulatory inhibitor subunit 1B Mus musculus
2 Because post-synaptic neurons within the striatum contain high levels of the dopamine- and cAMP-regulated phosphoprotein of 32 kDa (DARPP-32), we hypothesized that DARPP-32 may functionally contribute to the behavioral effects of nicotine. Nicotine protein phosphatase 1, regulatory inhibitor subunit 1B Mus musculus
3 Because post-synaptic neurons within the striatum contain high levels of the dopamine- and cAMP-regulated phosphoprotein of 32 kDa (DARPP-32), we hypothesized that DARPP-32 may functionally contribute to the behavioral effects of nicotine. Nicotine protein phosphatase 1, regulatory inhibitor subunit 1B Mus musculus
4 Because post-synaptic neurons within the striatum contain high levels of the dopamine- and cAMP-regulated phosphoprotein of 32 kDa (DARPP-32), we hypothesized that DARPP-32 may functionally contribute to the behavioral effects of nicotine. Nicotine protein phosphatase 1, regulatory inhibitor subunit 1B Mus musculus
5 Systemic injections of nicotine resulted in increased striatal DARPP-32 phosphorylation at threonine34 and threonine75. Nicotine protein phosphatase 1, regulatory inhibitor subunit 1B Mus musculus
6 CONCLUSIONS: DARPP-32 opposes the behavioral effects of nicotine possibly via concurrent phosphorylation at the two threonine sites. Nicotine protein phosphatase 1, regulatory inhibitor subunit 1B Mus musculus