Table 3.

Proteases isolated from plant latices.[ ⁵⁴ , ⁵⁹ , ⁶⁰ , ⁶¹ ]

Protease	Molecular weights [kDa]	Stability range		Optimal conditions		Common inhibitors
		pH	Temp. [°C]	pH	Temp. [°C]
Serine	33–117 (majority 60–80)	2.5–11	<80	5.2–10	40–75 (most of them 60–70)	Diisopropyl fluorophosphate (DFP), Phenylmethanesulfonyl fluoride (PMSF), Pamidinomethanesulfonyl fluoride (APMSF), Chymostatin and Ciethyl pyrocarbonate (DEPC).
Aspartic	45–60	4.0–7.5	<70	4.5–6.5	60	Pepstatin A
Cysteine	21–29	3–12	<80	7–9	60	Iodoacetamide (IAA), p‐chloromercury benzoate (PCMB), sodium tetrathionate, mercuric chloride, transepoxysuccinyl‐ l‐leucylamido‐(4‐guanidino)butane (E‐64).