題組內容

1. A scientist uses the yeast expression system to over-express one recombinant protein, and which is also an enzyme. Based on the enzymatic activity of the recombinant protein, the scientist is able to purify the protein and makes the purification table. 

(7) The enzyme has three substrates, including substrate A, B & C. The K, of substrate A, B and C to the enzyme is 8 nM, 50 nM and 4 mM, respectively. Among these three substrates, which one has the best reaction with the enzyme? Why?