“In Silico” Characterization of 3-Phytase A and 3-Phytase B from Aspergillus niger

Figure 11

Van der Waals electrostatic interactions involving the formation of hydrogen bonds (green dots) between the active site amino acids and/or those closest to it in 3-phytase A (a–e), chain A of 3-phytase B (f–j), and the oxygens or hydrogens of the phytic acid ligand. Red colored regions can be seen, corresponding to negative regions in the electrostatic cloud of the ligand that make contact with the amino acids of the protein.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)

(j)