Purification Step Total protein(mg) Total activity(units)* Specific activity(Units/mg) Purification(fold) Yield(%)
NaCl Extract 200 2200 11 1 100
DEAE-FastFlow 20 1066 53 5 49
ResourceQ 3 1000 333 30 45
Hydroxy Apatite 0.15 350 2333 212 16
ATPagarose 0.03 222 6938 631 10
One unit is defined as the amount of factor that produces a 50% reduction in the control alpha-factor precursor band under the assay conditions
Table 1: Purification of unfoldin from yeast microsome salt extract.