3.1.25.1 | 100-300fold, extensive purification, attempts to concentrate the enzyme preparation by Aquacide II or Sephadex G50 powder results in loss of activity, UV-DNA-cellulose chromatography, hydroxyapatite chromatography, gel filtration through Sephadex or CM-Sephadex as well as sedimentation in sucrose density gradients results in loss of activity if used after phosphocellulose chromatography, enzyme is more stable in fractions containing large amounts of protein like bovine serum albumin |