proteinase

Proteinases are enzymes that catalyse the breakdown of proteins. Proteinases are involved in many biological functions, including the digestion of ingested proteins, the breakdown of old proteins, and cell signalling. They also facilitate the formation of new protein products.

Methyl 2-(3-oxo-2-(pent-2-en-1-yl)cyclopentyl)acetate ((±)-Jasmonic Acid methyl ester) induces the synthesis of proteinase inhibitors in plant leaves, suppresses proliferation, and induces apoptosis in cancer cells. It inhibits hexokinase bound to mitochondria, disrupting mitochondrial hexokinase activity to selectively target and kill cancer cells. Derivatives of Methyl 2-(3-oxo-2-(pent-2-en-1-yl)cyclopentyl)acetate also exhibit potential as anti-inflammatory agents, and the compound has been primarily detected in urine.

Rivulariapeptolides 1155 is a potent serine protease inhibitor with inhibitory concentrations (IC50s) of 41.84 nM, 4.94 nM, and 56.54 nM against chymotrypsin, elastase, and proteinase K, respectively [1].

Rivulariapeptolides 988 demonstrates significant potency and selectivity as a serine protease inhibitor, exhibiting IC50 values of 95.46 nM for chymotrypsin, 15.29 nM for elastase, and 85.50 nM for proteinase K [1].

Aureoquinone is a broad-spectrum proteinase (protease) inhibitor. It inhibits trypsin, papain, thermolysin, collagenase, and pronase, with IC50 values of 11.4 μg mL, 14.5 μg mL, 17.8 μg mL, 7.1 μg mL, and 8.7 μg mL, respectively.

Rivulariapeptolides 1185, a highly potent and selective serine protease inhibitor, exhibits IC50 values of 13.17 nM for chymotrypsin, 23.59 nM for elastase, and 55.26 nM for proteinase K [1].

Molassamide B, a serine protease inhibitor, exhibits potent inhibitory activity, as evidenced by its IC50 values of 24.65 nM against chymotrypsin, 11.69 nM against elastase, and 5.42 nM against proteinase K [1].

Rivulariapeptolides 1121 is a potent and selective serine protease inhibitor, demonstrating IC50 values of 35.52 nM for chymotrypsin, 13.24 nM for elastase, and 48.05 nM for proteinase K [1].