Fig. 4

Relative activity of the recombinant aminotransferase with leucine (Leu), methionine (Met), α-aminobutyrate (AABA), alanine (Ala), cysteine (Cys), phenylalanine (Phe), serine (Ser), valine (Val), aspartate (Asp), isoleucine (Ile), and threonine (Thr), as amino group donor and α-ketoglutarate as amino group acceptor at pH 5.5. The highest activity was found with leucine, which was set at 100% for the calculation of the relative activities. The column height represents the mean (± SD) of triplicate measurements. The letters above the columns indicate significant differences between amino group donors (P < 0.05)