ISOLATION OF FACTOR H FROM FRACTION I PASTE

摘要

Among other aspects, the present disclosure provides methods for preparing enriched compositions of plasma-derived Factor H from fractions formed during the manufacturing processes of established plasma-derived therapeutic compositions. Specifically, methods are provided for the isolation of Factor H from Fraction precipitates commonly discarded during the manufacture of commercial IgG therapeutics. Advantageously, the Factor H compositions prepared according to these methods have improved proteolytic profiles and reduced amidolytic activity.