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Role of aromatic amino acids in amyloid self-assembly [PDF]
International Journal of Biological Macromolecules, 2020 Amyloids are proteins of a cross-β structure found as deposits in several diseases and also in normal tissues (nails, spider net, silk). Aromatic amino acids are frequently found in amyloid deposits.
Ivana M Stanković +2 more
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Affinity of aromatic amino acid side chains in amino acid solvents
Biophysical Chemistry, 2022The affinity between amino acid and water is important for understanding how proteins behave in aqueous solutions. For example, the hydrophobicity of amino acid side chains determines a protein's solubility. However, the affinity of amino acid side chains in amino acid solvents should be determined in order to understand the propensity of protein ...
Akira, Nomoto +2 more
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Biosynthesis of the Aromatic Amino Acids
EcoSal Plus, 2008This chapter describes in detail the genes and proteins of Escherichia coli involved in the biosynthesis and transport of the three aromatic amino acids tyrosine, phenylalanine, and tryptophan. It provides a historical perspective on the elaboration of the various reactions of the common pathway converting erythrose-
James, Pittard, Ji, Yang
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Modification of hyaluronic acid with aromatic amino acids
Russian Journal of Bioorganic Chemistry, 2005Hyaluronic acid was modified with aromatic amino acids (5-aminosalicylic, 4-aminosalicylic, anthranilic, and p-aminobenzoic) in the presence of 1-ethyl-3-[3-(dimethylamino)propyl]carbodiimide. The modified glycans contained 9-43% of arylamide groups and 10-33% of isoureidocarbonyl groups depending on the nature of the amino acid.
I Iu, Ponedel'kina +5 more
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Aromatic Amino Acids and Modification of Parkinsonism
New England Journal of Medicine, 1967THE known biochemical abnormalities in Parkinson's disease consist of a decrease of melanin pigment in the substantia nigra1 , 2 and a decrease of some biogenic amines in the substantia nigra and the corpus striatum.3 These 2 defects might be interrelated, as suggested by the fact that in both melanocytes4 and sympathetic cells5 tyrosine is ...
G C, Cotzias +2 more
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Aromatic amino acid catabolism in trypanosomatids
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2008Trypanosomatids cause important human diseases, like sleeping sickness, Chagas disease, and the leishmaniases. Unlike in the mammalian host, the metabolism of aromatic amino acids is a very simple pathway in these parasites. Trypanosoma brucei and Trypanosoma cruzi transaminate the three aromatic amino acids, the resulting 2-oxo acids being reduced to ...
Cristina, Nowicki, Juan J, Cazzulo
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Life Sciences, 1984
Homogenates of rat liver transaminate phenylpyruvate (PP), as well as alpha-ketoglutarate (alpha-KG), in the presence of L-tyrosine, 3,4-dihydroxyphenylalanine (L-DOPA) or L-tryptophan. Aminotransferase activity with phenylpyruvate and DOPA, but not with tyrosine, was inhibited by excess phenylpyruvate.
Y C, Chia, G W, Smith, G J, Lees
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Homogenates of rat liver transaminate phenylpyruvate (PP), as well as alpha-ketoglutarate (alpha-KG), in the presence of L-tyrosine, 3,4-dihydroxyphenylalanine (L-DOPA) or L-tryptophan. Aminotransferase activity with phenylpyruvate and DOPA, but not with tyrosine, was inhibited by excess phenylpyruvate.
Y C, Chia, G W, Smith, G J, Lees
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Metabolism of the Aromatic Amino Acids
1955Publisher Summary The chapter discusses the metabolism of phenylalanine, tyrosine, and tryptophan. Phenylalanine acid tryptophan is “essential” amino acids for higher organisms— that is, they cannot be synthesized by the organism and must be supplied in the diet. Tyrosine, formed from phenylalanine acid is not essential if the phenylalanine intake is
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