Enzymatic conversion of 5-tritiotryptophan to 4-tritio-5-hydroxytryptophan

Methods of Biochemical Analysis

The Medical Journal of Australia · 1956 · 4.5K citations

Natural Sciences, Biochemistry, Chemistry +12

A rapid and simple radioassay for tyrosine hydroxylase activity

Toshiharu Nagatsu, Morton Levitt, Sidney Udenfriend · Analytical Biochemistry · 1964 · 506 citations

Life Sciences, Endocrinology, Pharmacology +7

THE ESTIMATION OF 5-HYDROXYTRYPTAMINE (SEROTONIN) IN BIOLOGICAL TISSUES

Sidney Udenfriend, Herbert Weissbach, Carroll T. Clark · Journal of Biological Chemistry · 1955 · 422 citations · Full text

Medicine, Neuroscience, Pharmacology +9

A rapid assay for collagen proline hydroxylase

John J. Hutton, Al L. Tappel, Sidney Udenfriend · Analytical Biochemistry · 1966 · 328 citations

Life Sciences, Biochemistry, Clinical Biochemistry +10

Tryptophan hydroxylation in brain

Biochemical and Biophysical Research Communications · 1964 · 193 citations

Life Sciences, Biochemistry, Neuroscience +8