Hereditary fructose intolerance or fructosemia (fructose in the blood) is an autosomal recessive disorder caused by a defect in an aldolase gene (aldolase B), which is normally expressed in liver and kidney. Aldolase is the enzyme that converts fructose 6P (a six-carbon compound) to glycerone-P and glyceraldehyde-3P (two three-carbon compounds).
