Cellular signaling follows a cascade of events and has multiple points of regula

Question

Cellular signaling follows a cascade of events and has multiple points of regulation. Which of the following could be a reason(s) why a signalling cascade is interrupted, or turned 'off', once it has been turned 'on'? A. The ligand is prevented from reaching the binding site B. a chemical modification occurred on serine, threonine, or tyrosine side chains to turn on/off proteins C. a protein gets tagged with an ubiqutin group and gets degraded D. a G-binding protein binds to a GTP molecule E. A, B and C only F. A and B only G. All of the above

Explanation / Answer

ANS : option (E) A,B,C only

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