Which of the Following Statements About Tryptophan Synthase Is FALSE

question 9

Multiple Choice

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.

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