374 results

... provided evidence that the RNA code word for phenylalanine was a sequence of U’s contained in poly- ... possible a Ss s SS rod Xx J Cong] ~ SOX acid, phenylalanine (Phe). The finding was made by the author ...

... polynucleotide, polyuridylic acid,? on incorpora- tion of C-phenylalanine. In the absence of poly U, very little phenylalanine was incorporated into protein. Addition of 10 pg ...

... Methionine 9 64 0 9 15 4 12 Phenylalanine 152 606 86 64 14 0 10 Proline ... 23 6 Methionine 1 4 0 0 10 Phenylalanine 0 0 1 6 9 Proline 147 320 ... Methionine 0 10 0 0 0 0 10 Phenylalanine 0 0 1 0 4 0 1l Proline ...

... mammalian sources can catalyze the synthesis of tyrosine: phenylalanine hydroxylase (EC 1.14.16.1), tyrosine hydroxylase ( ... tyrosine 3-monooxygenase) cata- lyzes the conversion of phenylalanine to tyrosine, as well as the conversion of ...

... U of average chain length 11 actively directs phenylalanine incorporation (Marcus et al., 1963). Although cer- tain ... amino acid into protein are shown. For example, phenylalanine is directed into protein by poly U and ...

... appeared to be the coding unit corresponding to phenylalanine.!: 2 Phenylalanine linked to soluble RNA is an intermediate in ... proline, L-histidine- 2(ring)-C™, U-C14L-phenylalanine, U-C1*-L-threonine, L-methionine (methyl-C), ...

... different amino acids (valine, threonine, methionine, argi- nine, phenylalanine, lysine, and leu- cine), the NIH team finds ... RNA, for example, strongly stimulates amino acid incorporation. Phenylalanine Incorporation. The NIH team prepared a synthetic RNA ...

... unnatural protein composed entirely of the amino acid phenylalanine. The experiment showed that UUU was the codon for phenylalanine and that messenger RNA, which transcribes genetic information ...

Phenylalanine ... Biosynthesis of Polyphenylalanine Directed by Synthetic Template RNA Phenylalanine Poly U RNA Enzyme Activation Building on earlier ... the synthesis of polyphenylalanine; therefore, the code for phenylalanine is one or more uridylic acid residues. Poly ...

... because two of the three aromatic amino acids—phenylalanine and tyrosine—have no visible fluorescence, and tryptophane ... Ain mae Fie, 2.~-Phosphorescent spectra of (a) ¢) phenylalanine, (b) tyrosine, (c) tryptophane. ° 1 4 Aqueous 0. ...