Phenylalanine and Tyrosine MetabolismAnalysis in Heterozygotes forPhenylketonuria and in Healthy IndividualsRoseani Andrade, MSc 1,2 , Vaneisse Monteiro, MSc 1,2 , Cléber Cruz, MSc 2 ,Carla Silva, BS 2 , Adriana Bastos, MSc 2,3 , and Luiz Silva, PhD 2AbstractPhenylketonuria (PKU) is an ...
In chronic kidney failure, there is impairment in the conversion of phenylalanine to tyrosine. As a result, tyrosine and the tyrosine/phenylalanine ratio are reduced in plasma and many tissues, and phenylalanine concentrations tend to be normal or slightly increased. Although animal studies indicate ...
The phototrophic bacterium Rhodobacter capsulatus utilizes the aromatic amino acids L-phenylalanine and L-tyrosine as nitrogen source. L-Phenylalanine is hydroxylated to L-tyrosine, which is further converted into p-hydroxyphenyl pyruvate (pHPP) by a transamination reaction. The bacterium is unable to ...
1978. Metabolism of phenylalanine and tyrosine in tobacco cell lines resistant and sensitive to p-fluoro- phenylalanine. Phytochemistry 17: 65 - 68.Berlin J and Widholm JM (1978) Metabolism of phenylalanine and tyrosine in tobacco cell lines resistant and sensitive to p-fluorophenylalanine. ...
Flux through, and maximal activities of, key enzymes of phenylalanine and tyrosine degradation were measured in liver cells prepared from adrenalectomized rats and from streptozotocin-diabetic rats. Adrenalectomy decreased the phenylalanine hydroxylase flux/activity ratio; this was restored by steroid trea...
Phenylalanine Inhibition of Tyrosine Metabolism in the Liver. Nature 179, 1124–1126 (1957). https://doi.org/10.1038/1791124a0 Download citation Issue Date01 June 1957 DOIhttps://doi.org/10.1038/1791124a0 Springer Nature Limited This article is cited by Effects of L-Phenylalanine and Sodium ...
Phenylalanine and tyrosine metabolism in the facultative methylotroph Nocardia sp. 239 Nocardia sp. 239 is able to use l -tyrosine and both d - and l -phenylalanine as carbon-, energy- and nitrogen sources for growth. The catabolism of these... LD Boer,W Harder,L Dijkhuizen - 《Archives...
Phenylalanine and tyrosine metabolism in chronic kidney failure. The Journal of nutrition 137, 1586S-1590S (2007).Kopple, J.D. Phenylalanine and tyrosine metabolism in chronic kidney failure. J. Nutr., 2007, 137(6 Suppl. 1), 1586S-1590S....
(1974). Metabolism ofphenylalanine and tyrosine by rice leaves infected by Piricularia ory;:ae. Physiological Plant PatholO!f)I 4, 497-508.Burrell MM, Rees TA (1974) Metabolism of phenylalanine and tyrosine in rice leaves infected by Pyricularia oryzae . Physiol Mol Plant Pathol 4:497–508...
Plasma levels o f phenylalanine and tyrosine were measured before and after oral administration of either phenylalanine (phenylalanine tolerance test and phenylalanine conversion test) or tyrosine (tyrosine tolerance test) in patients with Parkinson's disease before and during l-dihydroxyphenylalanine (...