Lysozymes, also known as muramidase or N-acetylmuramide glycanhydrolase, are glycoside hydrolases. These are enzymes (EC 3. 2. 1. 17) that damage bacterial cell walls by catalyzing 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. Lysozyme is abundant in a number of secretions, such as tears, saliva, human milk, and mucus. It is also present in cytoplasmic granules of the macrophages and the polymorphonuclear neutrophils (PMNs). Large amounts of lysozyme can be found in egg white. C-type lysozymes are closely related to alphalactalbumin in sequence and structure, making them part of the same family.
Protein class

Disease related genes, Enzymes, Human disease related genes, Plasma proteins, Potential drug targets

Predicted location


Single cell type specificity

Cell type enhanced (monocytes, Macrophages, Langerhans cells, Pancreatic endocrine cells, Gastric mucus-secreting cells, Kupffer cells)

Immune cell specificity

Group enriched (classical monocyte, myeloid DC)

Cell line specificity

Cell line enriched (OE19)



Molecular function

Antimicrobial, Bacteriolytic enzyme, Glycosidase, Hydrolase

More Types Infomation

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