mtr: tryptophan-specific transport protein – transportstryptophan into the cell
trpA: tryptophan synthase, a protein – synthesizes tryptophanfrom its basic components
cusF: Periplasmic copper binding protein – binds copper ions
tnaA: Tryptophanase – enzyme for tryptophan catabolism
trpB: Tryptophan synthase, b protein – synthesizestryptophan
Q. If tryptophan caused the expression level to change, explainwhy these changes occur for each gene (that is, how does thepresence of tryptophan in the media influence expression of thegene...you should be able to infer this based on each gene’s knownfunction).
