Introduction: Enzymatic degradation of peptidoglycan, a structural cell wall component
of Gram-positive bacteria, has attracted considerable attention being a specific target for many
Methods: Peptidoglycan hydrolases are involved in bacterial lysis through peptidoglycan
degradation. β-N-acetyl-glucosaminidase, a peptidoglycan hydrolase, acts on O-glycosidic bonds
formed by N-acetylglucosamine and N-acetyl muramic acid residues of peptidoglycan. Aim of
present study was to study the action of β -N-acetylglucosaminidase, on methicillin-resistant
Staphylococcus aureus (MRSA) and other Gram-negative bacteria.
Results: We investigated its dynamic behaviour using molecular dynamics simulation and
observed that serine and alanine residues are involved in catalytic reaction in addition to aspartic
acid, histidine, lysine and arginine residues. When simulated in its bound state, the RMSD values
were found lesser than crystal form in the time stamp of 1000 picoseconds revealing its stability.
Structure remained stably folded over 1000 picoseconds without undergoing any major change
further confirming the stability of complex.
Conclusion: It can be concluded that enzymes belonging to this category can serve as a tool in
eradicating Gram-positive pathogens and associated infections.