Defective PAH does not hydroxylate L-Phe to L-Tyr [GO_0004505]

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            "label": "Defective PAH does not hydroxylate L-Phe to L-Tyr"
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        "description": [
            "Catalysis of the reaction: L-phenylalanine + tetrahydrobiopterin + O2 = L-tyrosine + 4-alpha-hydroxytetrahydrobiopterin."
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            "label": "oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced pteridine as one donor, and incorporation of one atom of oxygen"
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                "label": "tyrosine biosynthetic process, by oxidation of phenylalanine"
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