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Recettori accoppiati a Proteine-G (GPCR) - ctf novara

Recettori accoppiati a Proteine-G (GPCR) - ctf novara

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<strong>Recettori</strong> <strong>accoppiati</strong> a <strong>Proteine</strong>-G (<strong>GPCR</strong>)<br />

e TRASDUTTORI DEL SEGNALE<br />

Neurotrasmettitori:<br />

Catecolaminergico<br />

Adrenergico b1<br />

“ b2,3<br />

“ a1<br />

“ a2<br />

Dopaminergico<br />

D1<br />

D2<br />

Colinergico<br />

Muscarinico M 1,3, 5<br />

“ M 2, 4<br />

Serotoninergici<br />

5-HT 1, 2, 4<br />

G s<br />

Gs Gq G i /G 0<br />

G s<br />

G i /G 0<br />

Gq Gi +AMPcyclase<br />

+Canali Ca ++<br />

+AMPcyclase<br />

+Fosfolipase C<br />

-AMPcyclase<br />

+Canali K +<br />

-Canali Ca ++<br />

+AMPcyclase<br />

-AMPcyclase<br />

+Canali K +<br />

-Canali Ca ++<br />

+Fosfolipasi C<br />

-AMPcyclase<br />

+Canali K +

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