the purification is based on the finding that the enzyme is stable in 40 % ( v/v ) glycerol , in the presence of 0.05 m mgcl2 and involves adsorption of contaminants to deae-cellulose , precipitation of the complex of polymerase with dna by streptomycin sulfate , chromatography over biogel and affinity chromatography over heparin-sepharose or heparin-cellulose .
C0011050
deae-cellulose
C0007648
cellulose