Table 1.

Affinity purification of His-tagged GOR

Step	Protein	Volume	Activity	Specific activity	Purification	Yield
	mg	ml	units	units/mg	-fold	%
S100	3361.9	235	33.6	0.01
Q-HP	518.1	370	339	0.7	1	100
Nickel-nitrilotriacetic acid	2.9	2.4	144	50.1	76	43
Sephadex 200	2.1	2.1	101	48.3	74	30