The protein is peculiar in that it does not show an absorption maximum at 280 nm (McCord and Fridovich 1969; Bannister et al. 1971). According to Symonyan and Nalbandyan (1972) A259/A680 Equals 30. Isoelectric point: 4.95 (Bannister et al. 1971). Inhibitors: Cyanide inhibits cupro-zinc SOD but has no effect on the mangano enzyme of chicken liver mitochondria (Beauchamp , in Weisiger and Fridovich 1973). SOD is in

C.A.S.: 9054-89-1

Store at 2-8°C.