The TrpA protein, especially its α subunit, plays a crucial role in catalyzing the aldol cleavage of indole glycerol phosphate to produce indole and glyceraldehyde 3-phosphate. This enzymatic activity highlights the importance of TrpA in the tryptophan biosynthetic pathway, providing an essential component of cellular processes. TrpA Protein, E.coli is the recombinant E. coli-derived TrpA protein, expressed by E. coli , with tag free.