... Poly(U) greatly stimulates the incorporation of radioactive phenylalanine into poly-phenylatanine [8]. amino acids into protein. ... extraordinarily active in stimulating the incorporation of only phenylalanine into protein [8] (Figure 3). I immediately returned ...

... constructed an automatic instrument for the analysis of phenylalanine in serum. The basic approach involves the chemical derivatization of phenylalanine in the modified injector port of a gas ...

... benzene, an indol, or an imidazol group. 1. Phenylalanine (a-amino-0-phenylpropionic acid): C6H6CH2CHNH2COOH, or H ... the phenol and cresol from the tyrosine and phenylalanine. There is evidence that other more or less ...

... we have observed that the presence of a phenylalanine in the peptide results in the incorporation of ... chlorine atom in the aromatic ring of the phenylalanine. Since the reaction conditions are quite mild (overnight ...

... their disease; and also between a defect in phenylalanine-tyrosine metabolism and late metabolic acidosis in premature ... c. Djerassi An Automated Gas Chromatographic Analysis of Phenylalanine in Serun. Clinical Biochem. , 5, 166 (1972) | By ...

... is the liver that catalyzes the oxidation of phenylalanine to tyrosine. This is a mechanism for converting part of the phenylalanine in our food, which is present in excess ...

... potentially toxic blood levels of the amino acid phenylalanine. The goals of therapy are to provide adequate intakes of energy and nutrients but only enough phenylalanine to maintain normal growth and development. Meeting these ...

... C. Djerassi An Automated Gas Chromatographic Analysis of Phenylalanine in Serum. Clinical Biochem., 5, 166 (1972) | . By ... Kossanyi and A. M. Duffield The Determination of Phenylalanine in Serum by Mass Fragmentography Clinical Biochem., submitted ...

... smaller than normal amount of the amino acid phenylalanine. Phenylketonuria results from a genetic defect that leads ... effectiveness of the enzyme catalysing the oxidation of phenylalanine to tyrosine. The patients on a normal diet ...

... be the ebsence of an enzyme which converts phenylalanine to «tyrosine. Heterozygotes are clinically normal, but usually have elevated serum phenylalanine levels. When a test dose of phenylalanine ‘is ...