2.1.1.14 - 441322, 441323, 441328, 660333 2.1.1.14 DEAE column chromatography 672156 2.1.1.14 DEAE Sepharose column chromatography 671587 2.1.1.14 HiTrap heparin column chromatography 671587 2.1.1.14 immobilized metal ion affinity chromatography (Ni2+), gel fitration 720259 2.1.1.14 Ni2+-chelating chromatography, and S200 gel filtration 671122 2.1.1.14 rapid one-step purification 441175 2.1.1.14 Zn(II)-NTA column chromatography 676741