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Molecular Pharmacology, Vol 8, 501-510, Copyright © 1972 by the American Society for Pharmacology and Experimental Therapeutics
1 Laboratory of Neurochemistry, National Institute of Mental Health, Bethesda, Maryland 20014
A potent, specific antiserum to rat liver phenylalanine hydroxylase was produced in
sheep. Agar double-immunodiffusion reaction and enzyme inhibition studies revealed
extensive cross-reactivity between the antiserum and phenylalanine hydroxylases from
guinea pig, mouse, monkey, and human liver, as well as from rat kidney. No cross-reactivity with Pseudomonas phenylalanine hydroxylase could be demonstrated. Further
studies suggested cross-reactivity with bovine adrenal and rat brain tyrosine hydroxylases,
but not with rat brain tryptophan hydroxylase, rat kidney aromatic L-amino acid decarboxylase, or bovine adrenal dopamine
-hydroxylase.