Fig. 3

A Determination of Hydrogen bonds over 2.5 Ã… for the mutated residues, using Pymol. Mutated residues shown as sticks (atoms: nitrogen-blue, carbon-pink, hydrogen-white), N protein in green and hydrogen bonding as yellow dots. B Determination of hydrogen bonds over a 2.5 Ã… range for wild type residues. Original wild type residues shown as sticks (atoms: nitrogen-blue, carbon-pink, hydrogen-white, oxygen-red), N protein in green and hydrogen bonding as yellow dots