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. 1998 Feb;64(2):486–491. doi: 10.1128/aem.64.2.486-491.1998

TABLE 1.

Purification of LipP from E. coli C600 harboring pPL2-1

Purification method Total protein (mg) Total activity (Ua) Sp act (U/mg) Purifi- cation (fold) Yield (%)
Cell extract 180 5,200 29 1 100
DEAE-Cellulofine 5.3 1,300 250 8.6 25
Gigapite 0.8 860 1,100 38 17
a

Activity was measured by determination of 2,3-dimercaptopropan-1-ol formed from 2,3-dimercaptopropan-1-ol tributyl ester with 5,5′-dithio-bis(2-nitrobenzoic acid). The definition of unit is given in the text.