Figure 7From: Evolution of AANAT: expansion of the gene family in the cephalochordate amphioxusEnzyme activity of GST-bfAANATα and GST-bfAANATδ' as a function of substrate concentration. The enzyme assay with GST-bfAANATα and bfAANATδ' was measured at pH 9.0 and was performed as described in the Methods. Calculated values of Vmax and Km are given in Table 1. Data are presented as the mean ± S.E.M (N = 3).Back to article page