Childhood Encephalopathy Due to Thiamine Pyrophosphokinase Deficiency is related to thiamine metabolism dysfunction syndrome 5, and has symptoms including ataxia and muscle spasticity. An important gene associated with Childhood Encephalopathy Due to Thiamine Pyrophosphokinase Deficiency is TPK1 (Thiamin Pyrophosphokinase 1). Affiliated tissues include whole blood and brain.