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ikadub [295]
3 years ago
11

How would over expression of protein phosphatase 1 affect the induction of cAMP-inducible genes in response to hormone stimulati

on of target cells? Would protein phosphatase 1 affect the function of cAMP-gated ion channels? Why or why not?
Biology
1 answer:
finlep [7]3 years ago
5 0

Answer:

The protein phosphatase-1 dephosphorylates the residues of serine, which are phosphorylated by the protein kinase A. The cyclic-AMP inducible genes are stimulated by CREB that is phosphorylated by protein kinase A. Thus, overexpression of protein phosphatase 1 would prevent their induction.  

Although, protein phosphatase 1 would not influence the function of cAMP-gated ligand channels, as these channels are opened directly by binding of cAMP rather than by protein phosphorylation.  

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