Question

Classify the phrases. Does each phrase describe a kinase, a phosphatase, neither, or both? Kinases Phosphatases Neither Both catalyze dephosphorylation reactions add phosphoryl groups to proteins in eukaryotes, transfer phosphoryl groups to acidic amino acids may use ATP as a phosphoryl group donor regulate the activity of other proteins turn off signaling pathways triggered by kinases catalyze reactions that are the reverse of dephosphorylation reactions PKA (protein kinase A) is an example Answer Bank

Answer 1

Phosphatases catalyzes dephosphorylation reactions.

Both kinases and phosphatases may use A.T.P. as phosphoryl group donors

P.K.A. is an example of kinases.

Kinases add phosphoryl groups to proteins.

Phosphodiesterases can turn off signalling pathways triggered by kinases.It is neither a kinase nor a phosphatases.So the answer is none.

Kinases do transfer of phosphoryl groups to acidic amino acids in eukaryotes.

The reverse of dephosphorylation reaction is phosphorylation reaction and it is catalyzed by kinases.

Both kinases and phosphatases have regulations on the activity of other proteins