3.6.1.28 additional information Thtpa is known to decrease the levels of the energy currency molecule, thiamine triphosphate 3.6.1.28 thiamine triphosphate + H2O - 3.6.1.28 thiamine triphosphate + H2O thiamine triphosphate may play an important role in the regulation of Cl- permeability 3.6.1.28 thiamine triphosphate + H2O enzyme is involved in thiamine metabolism 3.6.1.28 thiamine triphosphate + H2O the enzyme may play a general role in neuronal metabolism rather than a specific role in excitability. There is no apparent correlation between enzyme expression and selective vulnerability of certain brain regions to thiamine deficiency