Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Tyrosinemia type 3 ?
    ### Response:
    Tyrosinemia type 3 is a genetic disorder characterized by elevated blood levels of the amino acid tyrosine, a building block of most proteins. This condition is caused by a deficiency of the enzyme 4-hydroxyphenylpyruvate dioxygenase, one of the enzymes required for the multi-step process that breaks down tyrosine.
    