Figure 6
From: Glutamine 89 is a key residue in the allosteric modulation of human serine racemase activity by ATP

Ancestral state reconstruction of Q89 in the SR phylogeny. The unrooted maximum-likelihood tree of SR, SDH, and TdcB was used to infer the probability of ancestral states at position 89 of hSR as reported in parenthesis for selected nodes. Experimentally characterized proteins are indicated by symbols. Accession numbers are reported in Fig. S1.