Lysozyme
Definition:
EC Tree > 3 Hydrolases > 3.2 Glycosylases > 3.2.1 Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds > 3.2.1.17 lysozyme
Lysozyme is a bacteriolytic glycoside hydrolase that hydrolyses (1->4)-beta-linkages between N-acetylmuramic acid and N-acetyl-D-glucosamine residues in peptidoglycan, and between N-acetyl-D-glucosamine residues in chitodextrins (cf. chitinase EC 3.2.1.14). By cleaving the bacterial cell-wall polysaccharide it lyses Gram-positive bacteria and serves as a non-specific innate-immune antimicrobial in tears, saliva and egg white. It appears in viruses and cellular organisms and adopts a lysozyme fold with a catalytic glutamic acid.
Lysozyme is a bacteriolytic glycoside hydrolase that hydrolyses (1->4)-beta-linkages between N-acetylmuramic acid and N-acetyl-D-glucosamine residues in peptidoglycan, and between N-acetyl-D-glucosamine residues in chitodextrins (cf. chitinase EC 3.2.1.14). By cleaving the bacterial cell-wall polysaccharide it lyses Gram-positive bacteria and serves as a non-specific innate-immune antimicrobial in tears, saliva and egg white. It appears in viruses and cellular organisms and adopts a lysozyme fold with a catalytic glutamic acid.
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