Types of Receptors And RAS

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(1) G-Protein Coupled Receptors: -The conformational change in the receptor upon ligand binding activates a G-protein

-This is turn activates an effector protein that generates a second messenger

(2) Tyrosine Kinase: -These receptors have catalytic activity that is activated by binding of the ligand

-Binding of an often dimeric ligand = Dimerisation of receptors = Phosphorylation of proteins

(3) Steroid: -Cytoplasmic membrane…


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