3.1.11.2 7 - assay at 752239 3.1.11.2 7.4 - assay at 749571 3.1.11.2 7.5 - 3'-5' exonuclease, 3'-phosphodiesterase and AP-endonuclease activity assay 682165 3.1.11.2 7.5 - assay at 713739, 714546, 751965 3.1.11.2 7.7 8.4 - 133965 3.1.11.2 7.7 8.4 in Tris buffer 133964 3.1.11.2 7.8 - assay at 749954 3.1.11.2 8 - assay at 714548 3.1.11.2 8 - exonuclease III digestion 683937