Action Effect Sequence of B Adrenergic Activation in Myocardial Cell

G-Protein Coupled Receptors

These receptors belong to a large family of cell membrane receptors. These receptors are bonded with effector (enzyme/channel/carrier protein) by one or more GTO-activated protein (G-protein) to give effective response. The structural organisation of all such receptors is common. GTP carrying α-subunit dissociated from the other two subunits can either inhibit or activate the effector. The β and γ

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