<human>:  Why is the AMPK protein called AMPK?
<bot>: AMPK stands for Adenosine Monophosphate-activated Protein Kinase. It is a protein that is involved in the regulation of cellular metabolism. AMPK is activated by a compound called AMP. When AMP is present, AMPK is activated, and it can cause the breakdown of stored energy. AMPK is also known as a metabolic master switch.