A method for determination of human urinary inactive kallikrein (prekallikrein).

Abstract
SHIMAMOTO, K., CHAO, J. and MARGOLIUS, H.S. A Method for Determination of Human Urinary Inactive Kallikrein (Prekallikrein). Tohoku J. exp. Med., 1982, 137 (3), 269-274-Inactive kallikrein (prekallikrein) in human urine was discovered recently. A more accurate method to measure this zymogen and total kallikrein is described. With trypsin pretreatment, it was found that 35.3±2.7% of total urinary kallikrein activity was prekallikrein. The results are supported by a new direct radioimmunoassay which measures predominantly active kallikrein.