Inositol Pyrophosphate Profiling of Two HCT116 Cell Lines Uncovers Variation in InsP8 Levels
Fig 4
Separation of 1-InsP7 and 5-InsP7 by CarboPac HPLC.
Standards of [3H]InsP6, 1-[3H]InsP7, 5-[3H]InsP7, and [3H]InsP8 (1 nmol of each) were chromatographed on a CarboPac HPLC column. Panels A and B show HPLC runs in which either 1-[3H]InsP7 or 5-[3H]InsP7 were added individually, while Panel C shows an HPLC run in which both [3H]InsP7 isomers were added together. Panel D, the mass amount of 5-InsP7 was increased to 20 nmol.