Description_x000D_ General description_x000D_ Lysozyme is abundantly found in animal and plant kingdoms. It is a natural food preservative and also found to be present in specific bacterial cell walls. Lysozyme is usually present in tears, milk, urine and saliva._x000D_ Application_x000D_ Lysozyme from human neutrophils has been used in the checkerboard method for establishing a synergy between peptidomimetic 1 and immune effector molecules against E. coli._x000D_ Biochem/physiol Actions_x000D_ Lysozymes participates in the defense mechanism. It has the ability to stimulate catalysis by bringing steric stress in the substrates._x000D_ Unit Definition_x000D_ One unit will produce a ΔA450 of 0.001 per min at pH 6.24 at 25°C, using a suspension of Micrococcus lysodeikticus as substrate, in a 2.6 mL reaction mixture (1 cm light path)._x000D_ Physical form_x000D_ Lyophilized from 50 mM sodium acetate, pH 6.0, with 100 mM NaCl_x000D_ Other Notes_x000D_ View more information on enzymes for complex carbohydrate analysis at www.sigma-aldrich.com/enzymeexplorer