4.2.3.5 6 8 enzyme form CS1 653564 4.2.3.5 6 8 enzyme form CS2 653564 4.2.3.5 6.5 8.5 - 653564 4.2.3.5 7 8 - 137652 4.2.3.5 7 8.5 - 653564 4.2.3.5 7.5 - assay at 692285 4.2.3.5 8 - - 653564 4.2.3.5 8.2 - - 137663, 653564