Which of the following statements about tryptophan synthase is FALSE?
A) Indole can pass between active sites via a channel in the enzyme.
B) Tryptophan synthase catalyzes two distinct reaction steps to form tryptophan.
C) The enzyme is a tetramer of four identical subunits.
D) The enzyme has two states,an "open" and "closed",to ensure that bound indole is not lost to solvent.
E) The indole group is produced following release of glyceraldehyde-3-phosphate from the indole-glycerol-3-phosphate.
Correct Answer:
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