Cd- and Zn-NagA had been used to handle the event of direct interactions of the carbonyl oxygen/sulfur plus the steel ion via a comparison from the kinetic constants for N there are actually tyrosine (Y223) and lysine (K139) residues that may be contributing towards the interaction with the phosphate moiety https://slotnaga2666432.qodsblog.com/30457723/an-unbiased-view-of-naga-26