Results 41 to 50 of about 212,752 (309)
Controlled self-assembly of modified aromatic amino acids
, 2021 We report the self-assembly of carbobenzoxyphenylalanine (Z-Phe-OH), carbobenzoxytryptophan (Z-Trp-OH), carbobenzoxytyrosine (Z-Tyr-OH) and N-(9-Fluorenylmethoxycarbonyl)-O-tert-butyl-L-tyrosine (Fmoc-Tyr(tbu)-OH) to well-defined morphologies such as ...
Bharti , Koshti +4 more
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Scientific Reports, 2021 The scope of the work undertaken in this paper was to explore the feasibility and reliability of using the Raman signature of aromatic amino acids as a marker in the detection of the presence of breast cancer and perhaps, even the prediction of cancer ...
Shaymus Contorno +2 more
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Tyrosine, Phenylalanine, and Tryptophan Undergo Self-Aggregation in Similar and Different Manners
Atmosphere, 2022 Phenylalanine, tyrosine, and tryptophan are aromatic amino acids, and they are of high interest in both health science and biotechnology. These amino acids form organized structures, like fibrils and nanotubes.
Sahin Uyaver
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4 Aromatic Amino Acids in the Brain
, 2007 This chapter describes the aromatic l-amino acids tryptophan and tyrosine and the effects on tyrosine metabolism of phenylalanine. Tryptophan and phenylalanine are essential amino acids and must ultimately be derived from dietary proteins; tyrosine is ...
M. Cansev +3 more
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Interaction of Aromatic Amino Acids with Neutral Polyadenylic Acid [PDF]
Proceedings of the National Academy of Sciences, 1971 The aromatic amino acids tryptophan, phenylalanine, and histidine interact with singlestranded polyadenylic acid [poly(A)] as observed by proton magnetic resonance spectroscopy. The chemical shift of the C 2 and C 8 protons of the adenine moiety of poly(A) is consistent with a destacking of ...
M, Raszka, M, Mandel
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Neutrophils as a source of branched-chain, aromatic and positively charged free amino acids
Cell Adhesion & Migration, 2019 Neutrophils release branched-chain (valine, isoleucine, leucine), aromatic (tyrosine, phenylalanine) and positively charged free amino acids (arginine, ornithine, lysine, hydroxylysine, histidine) when adhere and spread onto fibronectin.
Svetlana I. Galkina +5 more
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Acta Medica, 2000 Decarboxylation of aromatic amino acid in mammalian tissues is catalyzed by aromatic amino acid decarboxylase (EC. 4.1.1.28, AAD). The enzyme differs in its affinity to individual aromatic amino acids, the best substrates being 3,4-dihydroxyphenylalanine
Jaroslav Dršata, Eliška Marklová
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Plasma Amino Acid Concentrations Predict Mortality in Patients with End-Stage Liver Disease. [PDF]
PLoS ONE, 2016 The liver plays a key role in amino acid metabolism. In former studies, a ratio between branched-chain and aromatic amino acids (Fischer's ratio) revealed associations with hepatic encephalopathy.
Benedict Kinny-Köster +6 more
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Direct synthesis of α-thio aromatic acids from aromatic amino acids [PDF]
Tetrahedron Letters, 2018 Modified amino acids are useful synthetic components in both chemistry and biology. Here we describe a simple, scalable two-step procedure to generate α-thio aromatic acids from aromatic amino acids with yields of up to 96%. Diazotization and α-lactone mediated bromination efficiently form the α-bromo acid with retention of configuration.
Eric R, Samuels, Irina, Sevrioukova
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Phase-separation propensity of non-ionic amino acids in peptide-based complex coacervation systems
, 2022 Uncovering the sequence-encoded molecular grammar that governs the liquid–liquid phase separation (LLPS) of proteins is a crucial issue to understand dynamic compartmentalization in living cells and the emergence of protocells. Here, we present a model
Kentaro, Shiraki +6 more
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