TABLE 1.

Purification of P. calidifontis VA1 catalase

Method	Total activity (U)	Total protein (mg)	Sp act (U/mg)	Yield (%)	Purification (fold)
Crude extract	174,000	670	259	100	1
Ammonium sulfate (60-95%)	101,000	132	762	58	3
Resource PHE	76,500	24	3,150	44	12
Resource Q	64,100	11	5,960	37	23
Superdex 200	30,500	1.3	23,500	18	91