FURTHER STUDIES ON PREPARATION AND PROPERTIES OF PHAGOCYTIN

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Abstract
Phagocytin and histone differ significantly in the following regards: (a) the bactericidal action of histone is rapidly lost on peptic digestion, while that of phagocytin is but little affected; (b) the lethal effect of phagocytin on coliform bacteria is much more resistant than that of histone to antagonism by spermine or by increasing ionic strength of the medium; (c) phagocytin can be extracted from disrupted granulocytes with dilute citric acid whereas effective extraction of histone requires stronger mineral acid or strong salt solution; (d) phagocytin is limited in distribution to polymorphonuclear leucocytes while histone is demonstrable in many tissues.

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