Identification of a protease inhibitor from rat peritoneal macrophages as poly(ADP-ribose).


Rat peritoneal macrophages contain a chymotrypsin-like protease and its specific inhibitor, both being associated with chromatin of the cells. The inhibitor was separated from the protease by gel filtration through a Sephadex G-75 column, further treated with trypsin, DNase and RNase, and then purified successively on Sephadex G-75, Sephadex G-25, and… (More)


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