Other amines and amine precursors such as histamine, dopamine, levodopa, and tyrosine may also be involved in these reactions. |
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The tyrosine derivatives are the thyroid hormones, and the catecholamines which are produced in the medulla of the adrenal glands. |
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The synthesis of these hormones requires the amino acid tyrosine and the trace mineral iodine. |
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Betacynin biosynthesis starts by the oxidation of tyrosine to dopa by a tyrosine hydroxylase. |
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It preferentially hydrolyzes peptide bonds involving tyrosine, phenylalanine, and tryptophan. |
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In fact, tyrosine fluorescence is blue shifted relative to tryptophan fluorescence. |
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The amino acids glutamine and tyrosine will improve concentration, retention and a sense of alertness. |
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Cysteine, tyrosine, asparagine and histidine are also attractive in this connection, because each of them is encoded by only two possible codons. |
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Identical results were obtained by Willis and Szabo using tyrosine in the presence of acetate and other proton acceptors. |
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Protein tyrosine kinases play fundamental roles in signal transduction pathways. |
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Coupled with tyrosine, the caffeine in guarana helps promote muscle performance and neurotransmitter regeneration. |
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Norepinephrine is a potent vasoconstrictor synthesized from tyrosine in the presynaptic neuron. |
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Indeed, some seed diets fed to cage birds are known to be protein deficient and specifically deficient in tyrosine, cysteine, or methionine. |
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The most prevalent amino acid is cysteine with other major ones including tyrosine, histidine, lysine and arginine. |
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In animal cells serine, threonine and tyrosine are the amino acids subject to phosphorylation. |
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Recent antitumor research has been focused on tyrosine kinase growth factor receptors. |
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Like its amino-acid sister phenylalanine, tyrosine is a key nutrient that your body can use to restock NE stores depleted by ephedrine. |
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The body normally converts the amino acid tyrosine into the pigment melanin. |
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In culture on complex media or media containing tyrosine, a brown, diffusible pigment is produced by so-called fuscans strains. |
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The aromatic rings of phenylalanine, tyrosine, and tryptophan, however, absorb ultraviolet light between wavelengths of 280 and 290 nanometres. |
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In the case of the model compound of tyrosine NAYA, a small bathochromic shift of 2 nm in the emission spectrum from dioxane to water was observed. |
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The absorbance of ultraviolet light by tryptophan is greatest, that of tyrosine is less, and that of phenylalanine is least. |
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The melanosomes convert tyrosine to melanin, giving skin its color. |
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Interaction of Cl 2 with oxides of nitrogen may also occur, causing the chlorination and nitration of various amino acid residues, particularly tyrosine. |
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These two tyrosine derivatives are found only in urine, suggesting rapid clearance of these derivatives by the kidneys. |
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This approach was used in a study published in Science in 1999, where the molecular biology team knocked out an interesting tyrosine phosphatase. |
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Besides its role in hair and iris pigmentation, tyrosine is also a dopamine, noradrenalin and adrenalin precursor. |
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Because each molecule of tyrosine binds one or two iodine atoms, two tyrosines are used to synthesize both thyroxine and triiodothyronine. |
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The amino acids tyrosine and phenylalanine are the building materials for catecholamines, which are used as source material for both neurotransmitters and for hormones. |
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In addition to the DNA-binding motif and the ATP binding site, TyrR contains binding sites for the aromatic amino acids tyrosine and phenylalanine. |
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Fibroin is a fibrous protein rich in glycine and alanine, but also serine and tyrosine. |
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The most widely accepted and significant leukemogenic mechanism attributed to the fusion protein involves the constitutive stimulation of tyrosine kinase. |
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This mutation encodes an enzyme, Bcr-Abl tyrosine kinase, that causes white blood cells to proliferate. |
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Use of nicotinamide adenine-dinucleotide or a salt thereof, except in a combination with tyrosine, for the production of a medicament suited for the treatment of Parkinson's syndrome. |
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Inhibition of erbB receptor tyrosine kinases as a strategy to abrogate antioestrogen resistance in human breast cancer. |
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These include kinins like PKC and tyrosine kinase, TNF, NF-kappa B, cyclic D, protein API, STAT family agents, etc. |
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Folin O and V Ciocalteu On tyrosine and tryptophane determination in proteins. |
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Influence of methamphetamine on nigral and striatal tyrosine hydroxylase activity and on striatal dopamine levels. |
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Sugar beets contain a lot of the enzyme tyrosinase, which converts tyrosine into L-dopa, the precursor of dopamine. |
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Phenylalanine is normally converted in the human body to tyrosine, another amino acid, by a specific organic catalyst, or enzyme, called phenylalanine hydroxylase. |
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Reduced density and volume of tyrosine hydroxylase positive nuclei and fibers in substantia nigra in females at 4.5 kg per day, not at 1200 kg per day. |
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Dephosphorylation of tyrosine phosphorylated synthetic peptides by rat liver phosphotyrosine protein phosphatase isoenzymes. |
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Cytokinin controls the cell cycle at mitosis by stimulating the tyrosine dephosphorylation and activation of p34cdc2-like HI histone kinase. |
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We have also determined SASH1 does not normally have tyrosine phosphorylation in HeLa cells. |
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Dr. Branch's research also involves the study of signal transduction. He is interested in the Src family of protein tyrosine kinases and the SHP-1 protein tyrosine phosphatase. |
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Although the optical rotation of a protein depends on all of the amino acids of which it is composed, the most important ones are cystine and the aromatic amino acids phenylalanine, tyrosine, and tryptophan. |
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Similarly, denatured proteins give more intense colour reactions for tyrosine, histidine, and arginine than do the same proteins in the native state. |
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If the tyrosine or tryptophan content of the protein is known, therefore, the concentration of the protein solution can be determined by measuring its absorbance between 280 and 290 nanometres. |
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Just so we're in the same ballpark, when I refer to Avastin or bevacizumab, I'm talking about the same class of new antiangiogenics or tyrosine kinase inhibitors that Dr. Knox was talking about with Sutent. |
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A new medicine that may help to extend survival is an inhibitor of tyrosine kinase, an enzyme involved in signal transduction in many types of tumour cells. |
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We already showed that this approach is valid as we identified one new substrate of BACE 1, namely the protein tyrosine kinase Ephrin A8 receptor. |
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A tyrosine metabolite and two ketoacids were detected at increased concentrations in patients with severe malaria. |
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Erlotinib, gefitinib and afatinib inhibit tyrosine kinase at the epidermal growth factor receptor. |
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His main emphasis at that time was on weight loss promoted by the amino acids 5-HTP, tyrosine, and L-dopa. |
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A baculovirus-encoded protein tyrosine phosphatase gene induces enhanced locomotory activity in a lepidopteran host. |
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Molecules designed to block ATP from attaching to its binding domain will inhibit tyrosine phosphorylation and block signal transduction. |
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Melanoid pigments are not formed on peptone yeast iron agar and on tyrosine agar. |
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Tie2 is a receptor tyrosine kinase expressed on vascular endothelial cells, which plays a key role in stabilizing blood vessels. |
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With the advent of targeted therapy, specific tyrosine kinase inhibitors have been developed against the Ableson oncogene. |
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Total Essential Amino Acids calculated includes histidine and arginine and excluded cysteine and tyrosine. |
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The crystals appeared similar to tyrosine crystals, which are sometimes observed in the urine of patients with liver disorders and tyrosinemias. |
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A similar effect on norepinephrine can be achieved with an enzyme that blocks its synthesis from tyrosine. |
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Resacetophenone is a tyrosine active-site deactivator that provides skin brightening properties. |
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Thyroglobulin contains 140 tyrosine residues and serves as the matrix to which reactive iodine is attached to form monoiodotyrosine and diiodotyrosine. |
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Chorismate mutase catalyzes the rearrangement of chorismate to prephenate that can subsequently be converted to aromatic products such as tyrosine or phenyalanine. |
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But what about coenzyme Q10, superoxide dismutase, tyrosine, germanium, ginseng, quercetin, carnitine, and dozens of herbs, glandular extracts, amino acids, and nucleic acids? |
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Another major focus of his research has concerned receptor tyrosine kinases, a family of signaling proteins that control the clinical behavior of neuroblastomas. |
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So if you give the rat tyrosine, it lowers its blood pressure. |
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Other tyrosine kinase inhibitors are evaluated as well, of which the Syk inhibitors, fostamatinib and entospletinib, might be of particular interest in the near future. |
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Targeted therapeutics offer superior pharmacological benefits due to which profit margin of tyrosine kinase inhibitors are expected to increase in coming years. |
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Upon ligand binding, receptor homodimerization or heterodimerization occurs, which is followed by autophosphorylation and activation of the tyrosine kinase domains. |
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The RET proto-oncogene encodes a cell membrane receptor tyrosine kinase. |
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