1.14.99.20 expressed in chinese hamster ovary cells CHO-Dukx-B11 438310 1.14.99.20 wild-type and mutants of bovine enzyme species expressed in baculovirus-infected Spodoptera frugiperda cells 438308 1.14.99.20 wild-type and mutants of bovine enzyme species expressed in chinese hamster ovary cells CHO-Dukx-B11 438309