45.00. 1  Stock varies-Not all items listed may be in stock. 2  Pricing Subject To Change Without Notice. 3  Other Sizes & Pricing Maybe Available.  Evergreen 1  Policies. ***The photo(s) does not necessarily reflect what is currently available at Evergreen Nursery***.
...of the body to metabolize the amino acid phenylalanine. Phenylalanine is normally converted in the human body to tyrosine, another amino acid, by a specific organic catalyst, or enzyme, called phenylalanine hydroxylase. This enzyme is not active in individuals who have phenylketonuria.
In a person with PKU, this defective gene causes a lack of or deficiency of the enzyme that's needed to process an amino acid called phenylalanine. A dangerous buildup of phenylalanine can develop when a person with PKU eats foods that are high in protein, such as milk, cheese, nuts or meat.