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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Which enzyme deficiency causes tyrosinemia type 1?
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The correct answer is  Fumarylacetoacetate is then hydrolyzed to fumarate and acetoacetate by a hydrolase (step 6, Fig.17.2). This results in the production of a glucogenic product (fumarate) and a ketone body (acetoacetate). Hence phenylalanine and tyrosine are paly glucogenic and paly ketogenic. Impoant Specialized Products from TyrosineRef: DM Vasudevan - Textbook of Biochemistry, 6th edition, page no: 204