An extracellular protease derived from S-180 tumour cells in culture
Chakrabarti, R.; Chaudhuri, L.
Indian Journal of Experimental Biology 26(3): 211-213
1988
ISSN/ISBN: 0019-5189 PMID: 3294166 Document Number: 307960
Sarcoma-180 tumour cells, cultured in vitro showed leakage of a neutral protease in the extra-cellular medium. The cells (80%) were viable in serum-free medium up to 24 hr. Inhibition of this protease by phenyl methane sulphonyl fluoride and soybean trypsin inhibitor indicates it to be trypsin-like. The enzyme cleaves the substrates in which lysine or arginine carries the p-nitroanilide group and thus confirms the trypsin-like natuer of the enzyme.