Structure-function relationships of phenylalanine hydroxylase revealed by radiation target analysis

M D Davis1, M A Parniak, S Kaufman

  • 1National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA.

Summary

Radiation target analysis reveals phenylalanine hydroxylase (PAH) tetramers contain two active dimers. Tetrahydrobiopterin (BH4) binding to PAH tetramers inhibits enzymatic activity, affecting phenylalanine metabolism.

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