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TLS Online TPP Program

#Id: 9089

ADP-ribosylation blocks the GTPase activity of Gαs and renders Gαs permanently active. 

#Unit 4. Cell Communication and Cell Signaling #G Protein–Coupled Receptors #Part B Pointers
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TLS Online TPP Program

#Id: 1106

#Unit 2. Cellular Organization

Nucleotide binding domain serves as a built-in protein kinase that functions to phosphorylate the P domain.
TLS Online TPP Program

#Id: 1107

#Unit 2. Cellular Organization

Actuator domain has protein phosphatase activity and removes the phosphoryl group from the Asp residue
TLS Online TPP Program

#Id: 1108

#Unit 2. Cellular Organization

E1’s ion-binding sites are exposed to the cytoplasm, and it has high affinity for Na+ but low affinity for K+
TLS Online TPP Program

#Id: 1109

#Unit 2. Cellular Organization

E2’s ion binding sites are exposed to the exterior of the cell and it has low affinity for Na+ but high affinity for K+
TLS Online TPP Program

#Id: 1110

#Unit 2. Cellular Organization

Cardiac glycosides (e.g., ouabain and digitalis) are a class of drugs that inhibits Na+-K+ ATPase.
TLS Online TPP Program

#Id: 1296

#Unit 2. Cellular Organization

ATP-powered pumps use the energy released by hydrolysis of the terminal phosphoanhydride bond of ATP to transport ions.