Figure 4: PyMOL image of D48A mutated egg hen lysozyme bounded to (GlcNAc)4 Image 4a shows the overall lysozyme enzyme structure with positive side chains labeled in green and negative side chains labeled in dark blue. As well, (GlcNAc)4 (also known as NAG) is colored in red. Side chains responsible for forming 6 hydrogen bonds (shown in yellow dashes) toward the NAG ligand is shown in figure 4b along side two important catalytic residues: Asp52 (orange) and Glu35 (magenta). Trp62 is depicted in teal and shown in image 4c stacked with the glucose-like ring in the (GlcNAc)4 ligand. White dashes illustrate the parallel nature of this arrangement.