Lysozymes have primarily a bacteriolytic function; those in tissues and body fluids are associated with the monocyte-macrophage system and enhance the activity of immunoagents. Has antibacterial activity against the Gram-positive bacterium S.aureus and against the Gram-negative bacterium E.coli with a MIC of 1 uM and 8 uM respectively. No antifungal activity against C.albicans. Hydrolysis of (1->4)-beta-linkages between N-acetylmuramic acid and N-acetyl-D-glucosamine residues in a peptidoglycan and between N-acetyl-D-glucosamine residues in chitodextrins. Optimum pH is 6.0. Stable from 20 degrees Celsius to 70 degrees Celsius. Activity decreases sharply above 70 degrees Celsius. Expressed by the skin glands. Belongs to the glycosyl hydrolase 22 family.