High-molecular-mass proteases (possible proteasomes) in Escherichia coli K12.


Two high-molecular-mass proteases have been detected in E.coli K12 and isolated from the periplasmic fraction released by osmotic shock. The two proteases, designated Protease peri7 and Protease peri8, have similar molecular masses (greater than 2000 kDa) and degrade alpha- and beta-casein, but not insulin B chain. Protease peri7 is a metalloprotease… (More)


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