1938298 EC 3.2.1.6 endo-1,3(4)-beta-glucanase 12 2225984 EC 3.2.1.39 endo-1,3-beta-glucanase 10 1239485 1,3-beta-GLU endo-1,3-beta-glucanase 1 1018164 Gns endo-1,3-beta-glucanase 1