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.

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