TABLE 1.

Purification of A. foetidus 1-SST

Purification step	Total activitya	Protein concn (mg)	Sp actb	Purification factor
Culture medium	85.2	29.38	2.9
(NH4)2SO4 pellet	64	20.03	3.2	1.1
ConA	31.3	2.27	13.8	4.69
Mono Q	27.9	0.34	82.1	27.93
Superdex 200	23.6	0.092	257.2	87.5

^aTotal activity is expressed in micromoles of glucose min⁻¹ at 37°C. 

^bSpecific activity is expressed in micromoles of glucose μg of protein⁻¹ min⁻¹ at 37°C.