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. 1999 Sep;65(9):3969–3975. doi: 10.1128/aem.65.9.3969-3975.1999

TABLE 2.

Purification of Y. ruckeri 47-kDa caseinolytic protease

Purification step Total protein (mg) Total activity (EU) Sp act (EU/mg) Purifi-cation (fold) Yield (%)
Culture supernatant 4,400 412,533 92.91 1 100
Ammonium sulfate 11.44 176,800 154.54 1.66 42.8
DEAE-Sephacel 1.12 8,580 7,633.45 82.15 2.07