Fig. 10
Binding model of GS1 to NH4+ by molecular docking. The 3D AtGS1-NH4+ interaction model (A). The 3D PnGS1-NH4+ interaction model (B). The 3D StGS1-NH4+ interaction model (C). The 3D ZmGS1-NH4+ interaction model (D). The 2D AtGS1-NH4+ interaction model (E). The 2D PnGS1-NH4+ interaction model (F). The 2D StGS1-NH4+ interaction model (G). The 2D ZmGS1-NH4+ interaction model (H). Dashed lines indicate a potential interaction between amino acid residues with NH4+. The black balls showed carbon atoms, the blue balls showed nitrogen atoms whereas the red balls showed the oxygen atoms. The residues involved in non-bonding interactions were shown as red bristles. The NH4+ had hydrophobic interactions with Glu131 and His304