Figure 4From: Characterisation of the tryptophan synthase alpha subunit in maizeDetermination of enzymatic activities in leaf extracts fractionized by size exclusion chromatography. Formation of indole from IGP (α-reaction, A, B) and of tryptophan from indole + serine (β-reaction, C, D) was quantified. The wildtype line B73, bx1 mutant (A, C), and tsb1 and tsb2 mutants (B, D) were analyzed.Back to article page