<unk> , is an autosomal recessive metabolic disorder caused by a deficiency of the enzyme urocanase. It is a secondary disorder of histidine metabolism.
Urocanic aciduria
Hawkinsinuria
Orotic aciduria
Alpha-aminoadipic and alpha-ketoadipic aciduria
Cystathioninuria
Alkaptonuria
Saccharopinuria
Homocystinuria