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. 2004 Oct 26;383(Pt 3):517–527. doi: 10.1042/BJ20040721

Table 2. Purification of His6–BjHMGS1 from a 1 litre culture of pBj75-transformed E. coli BL21 Star (DE3) pLysS cells following induction with 0.5 mM IPTG.

Crude cell extract Ni2+-NTA purified fraction
Volume (ml) 24.5 5.5
Total protein (mg) 43.5 4.95
Total activity (μmol·min−1) 1.13 0.52
Specific activity (μmol·min−1·mg−1) 0.02 0.10
Yield (%) 100.00 46.01

Enzyme activity was measured in the presence of equimolar concentrations of [14C]acetyl-CoA and AcAc-CoA at 30 °C.