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#G protein signaling

4 public questions tagged with this topic.

Cell Signaling GPCR Pathways - I

Gαq activates which effector enzyme?

Phospholipase Cβ, is consistent with established principles of cell signaling, receptor pharmacology and cellular regulation. Experimental measurements of binding parameters, genetic loss-of-function studies and pharmacological interventions all converge on the same interpretation. Related options address neighboring concepts but do not satisfy the precise criterion stated in the question.

Ref: NCERT Biology Class 11–12 Alberts et al Molecular Biology of the Cell Lodish et al, Molecular Cell Biology Cooper & Hausman, The Cell Abbas et al., Cellular and Molecular Immunology (for immunology sections)

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Cell Signaling GPCR Pathways - I

Inhibition of adenylyl cyclase is mediated by

Adenylyl cyclase catalyzes the conversion of ATP to the second messenger cyclic AMP. The enzyme is stimulated by GTP-bound Gαs and inhibited by GTP-bound Gαi. The resulting changes in cAMP concentration regulate protein kinase A and cyclic-nucleotide-gated channels, linking G-protein-coupled receptors to diverse physiological responses. Careful

Ref: NCERT Biology Class 11–12 Alberts et al Molecular Biology of the Cell Lodish et al, Molecular Cell Biology Cooper & Hausman, The Cell Abbas et al., Cellular and Molecular Immunology (for immunology sections)

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Cell Signaling GPCR Pathways - I

RGS proteins function to

accelerate GTP hydrolysis, is consistent with established principles of cell signaling, receptor pharmacology and cellular regulation. Experimental measurements of binding parameters, genetic loss-of-function studies and pharmacological interventions all converge on the same interpretation. Related options address neighboring concepts but do not satisfy the precise criterion stated in the question.

Ref: NCERT Biology Class 11–12 Alberts et al Molecular Biology of the Cell Lodish et al, Molecular Cell Biology Cooper & Hausman, The Cell Abbas et al., Cellular and Molecular Immunology (for immunology sections)

View Details