1.1.99.2 brain low level 657168 1.1.99.2 cell culture high levels of the enzyme is produced at the late stage of cultivation in the presence of citrate and with limited aeration 389902 1.1.99.2 fibroblast - 699377 1.1.99.2 heart low level 657168 1.1.99.2 kidney - 657168 1.1.99.2 liver - 389903, 654542, 657168, 752792, 754339 1.1.99.2 lymphoblast - 699377 1.1.99.2 lymphocyte - 699377 1.1.99.2 additional information no activity in heart, brain and skeletal muscle, cultured human skin fibroblasts and transformed lymphocyte 752792 1.1.99.2 additional information traces of activity in muscle and spleen 657168