Thiamine (vitamin B1) is an important constituent of thiamine pyrophosphate (TPP), a cofactor found in several important dehydrogenase reactions. Notably, it is found in pyruvate dehydrogenase, alpha ketoglutarate dehydrogenase, and branched chain ketoacid dehydrogenase. And don’t forget about the transketolase…

Vitamin B1 (thiamine) : Sources, Active form, Functions, Absorption, Transportation and Deficiency Water-soluble: metabolic vitamins B1 through B7 (no B4; adenine is B4 and isn’t considered a B vitamin anymore) Vit B1 (thiamine): one of its derivatives, thiamine pyrophosphate, is…