How To Use Tyrosine In A Sentence
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In a study of guinea pigs, oral administration of diiodotyrosine prevented alterations in thyroid and pituitary function induced by ovariectomy.
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- Amino acid deficiency - Amino acids such as phenylalanine, tyrosine and tryptophan provide the basis for the body's production of important neuro-transmitters in the body.
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It is remarkable that the principle fluorophore is derived from a triplet of adjacent amino acids: the serine, tyrosine, and glycine residues at locations 65, 66, and 67 (referred to as Ser65, Tyr66, and Gly67; see Figure 2).
Archive 2005-10-01
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Objective To diagnose and treat leukemia, protein tyrosine kinase (PTK) activities were studied in human blood and myelogenic cell.
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These observations suggest that the mutated tyrosine phosphatases are tumor suppressor genes, regulating cellular pathways that may be amenable to therapeutic intervention.
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Thus the enzymes catabolize phenylalanine to tyrosine and tyrosine to
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Plasma pepsinogen levels are above the normal of 1.0 i.u. tyrosine and usually exceed 2.0 i.u. in sheep with heavy infections.
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Protein tyrosine kinases play fundamental roles in signal transduction pathways.
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(This allows the diazo groups to covalently couple to the tyrosine phenolic groups on the enzyme)
Archive 2004-12-01
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In animal cells serine, threonine and tyrosine are the amino acids subject to phosphorylation.
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In fact, tyrosine fluorescence is blue shifted relative to tryptophan fluorescence.
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The roles of protein tyrosine phosphatase SHP 2 in breast cancer(MCF 7) cell adhesion and migration were investigated.
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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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By studying shrimp at different times during the 5 day molt cycle, we observed the cyclic increase of tyrosine within the hemocytes with a maximum during days 1 and 5, when quinones are necessary for tanning the exoskeleton.
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The thyroid hormones thyroxine and triiodothyronine are iodinated amino acid derivatives formed by oxidative coupling of two iodinated tyrosine residues in the thyroid protein thyroglobulin.
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Coupled with tyrosine, the caffeine in guarana helps promote muscle performance and neurotransmitter regeneration.
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All the pieces needed for tyrosine kinase signaling came together in a single celled eukaryote.
Biomolecular Networks
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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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The parasite infects the brain by forming a cyst within its cells and produces an enzyme called tyrosine hydroxylase, which is needed to make dopamine.
GEN News Highlights
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The relation between yellowness index and time of irradiation is a power function. After irradiation, the most decreased amino acids are corresponding to tryptophan, histidine and tyrosine.
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Aminoacidopathies (maple syrup urine disease; homocystinuria; cobalamin deficiencies; tyrosinemia; urea cycle defects (ornithine transcarbamylase, carbamyl phosphate synthase, citrullinemia, argininosuccinic aciduria, arginase deficiencies) and non-ketotic hyperglycinemia)
Biochemical Genetics-Metabolic Disease
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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 melanosomes convert tyrosine to melanin, giving skin its color.
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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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It includes tyrosinase activity (melanin is synthesed from tyrosine), DOPA production (used in threatment of Parkinson disease and depression) and in many other metabolytical pathways.
Just call him/her Ol’ Blue Eyes
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It would be ironic if courts, seeing opposing expert witnesses giving odds of correct identification differing a million-fold (105: 1 versus 1011: 1), were to decide that DNA evidence is hopelessly unreliable, and turn instead to eye-witness identification (odds of correct identification diazonium salt -- couples to enzyme tyrosine groups
Archive 2004-12-01
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I'm a catecholamine man myself: it's norepinephrine which does it -- that's a breakdown of tyrosine.
THE PRESIDENT'S CHILD
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I'm a catecholamine man myself: it's norepinephrine which does it -- that's a breakdown of tyrosine.
THE PRESIDENT'S CHILD
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One was obviously to further dissect the tyrosine aminotransferase (TAT) ATP-dependent proteolytic pathway: Avram started his own trip into the world of intracellular proteolysis with Gordon and discovered that the degradation of the gluconeogenetic enzyme TAT in cells requires energy.
Aaron Ciechanover - Autobiography
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A classic example of a receptor tyrosine kinase receptor is the insulin receptor.
2008 June - Telic Thoughts
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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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One potential mechanism for these differences is the differential expression of PTP-PEST, a tyrosine phosphatase known to dephosphorylate Pyk2 in T cells
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Today the company said it is expanding its immunotherapy platform by acquiring exclusive rights to immune-modulating molecules known as FMS-like tyrosine kinase 3 ligand (Flt3L) and CD40 ligand (CD40L), from
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Tyrosine kinases associated with cyclins have also been shown to be affected by vitamin K, which can lead to cell cycle arrest and cell death.
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These included Viesturs Simanis, Sergio Moreno and Kathy Gould, who between them worked out that cdc2 encoded a protein kinase that was regulated during the cell cycle and was controlled by tyrosine phosphorylation.
Sir Paul Nurse - Autobiography
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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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T. gondii enzymes with tryptophan, but the enzymes were able to catabolize tyrosine and phenylalanine.
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Dopamine is made from the amino acids tyrosine and phenylalanine.
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Other amines and amine precursors such as histamine, dopamine, levodopa, and tyrosine may also be involved in these reactions.
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Erlotinib is a small molecule tyrosine kinase inhibitor that efficiently blocks EGFR.
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There are two more groups of oncogene products with phosphokinase activity; firstly tyrosine/phosphokinase which lack receptor function and is located at the inside of the cytoplasmic membrane, and secondly serine/threonine phosphokinase which is found in the cytoplasm.
Nobel Prize in Physiology or Medicine 1989 - Press Release
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By studying shrimp at different times during the 5 day molt cycle, we observed the cyclic increase of tyrosine within the hemocytes with a maximum during days 1 and 5, when quinones are necessary for tanning the exoskeleton.
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Many leukemic oncogenes form as a consequence of gene fusions or mutation that result in the activation or overexpression of a tyrosine kinase.
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The amino acids glutamine and tyrosine will improve concentration, retention and a sense of alertness.
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It preferentially hydrolyzes peptide bonds involving tyrosine, phenylalanine, and tryptophan.
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`One might expect it to do something since you found tyrosine quite active.
MURDER MOVES IN
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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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Guts: All the pieces needed for tyrosine kinase signaling came together in a single celled eukaryote.
Biomolecular Networks
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Aminoacidopathies (maple syrup urine disease; homocystinuria; cobalamin deficiencies; tyrosinemia; urea cycle defects (ornithine transcarbamylase, carbamyl phosphate synthase, citrullinemia, argininosuccinic aciduria, arginase deficiencies) and non-ketotic hyperglycinemia)
Biochemical Genetics-Metabolic Disease
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The body normally converts the amino acid tyrosine into the pigment melanin.
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The tyrosine derivatives are the thyroid hormones, and the catecholamines (adrenaline and noradrenaline) which are produced in the medulla of the adrenal glands.
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Recent antitumor research has been focused on tyrosine kinase growth factor receptors.
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The reaction is detected using biotinylated phosphoserine, phosphothreonine, and phosphotyrosine monoclonal antibodies followed by streptavidin-phycoerythrin.
The Scientist
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An enzyme that converts the amino acid phenylamine to tyrosine, a precursor to the neurotransmitter dopamine.
Alcohol and The Addictive Brain
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Some, such as thyroxine, epinephrine, and histamine have molecules that are modifications of single amino acids; tyrosine in the first two cases, histidine in the last.
The Human Brain
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One was obviously to further dissect the tyrosine aminotransferase (TAT) ATP-dependent proteolytic pathway: Avram started his own trip into the world of intracellular proteolysis with Gordon and discovered that the degradation of the gluconeogenetic enzyme TAT in cells requires energy.
Aaron Ciechanover - Autobiography
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These observations suggest that the mutated tyrosine phosphatases are tumor suppressor genes, regulating cellular pathways that may be amenable to therapeutic intervention.
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The blue and cyan variants of green fluorescent protein resulted from direct modification of the tyrosine residue at position 66 (Tyr66) in the native fluorophore (see Figure 2).
Archive 2005-10-01
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Aminoacidopathies (maple syrup urine disease; homocystinuria; cobalamin deficiencies; tyrosinemia; urea cycle defects (ornithine transcarbamylase, carbamyl phosphate synthase, citrullinemia, argininosuccinic aciduria, arginase deficiencies) and non-ketotic hyperglycinemia)
Biochemical Genetics-Metabolic Disease
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In animal cells serine, threonine and tyrosine are the amino acids subject to phosphorylation.
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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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He starts with deprenyl and piracetam -- drugs that are normally used to treat diseases like Parkinson's but that casual users can get from overseas sources -- and moves on to a series of amino acids (glutamine, phenylalanine, tyrosine).
Memory
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Tyrosine is a good choice as a stand-alone supplement or as a complement to other fat-burning ingredients.
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Protein tyrosine nitration is a biomarker of NO - dependent oxidative stress.
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In addition, the activity of the rate limiting enzyme in dopamine synthesis, tyrosine dehydroxylase (TH), is altered under several types of heterotypic stresses in
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The phenolic substrates studied were p-cresol, p-hydroxyphenyl propionic acid, tyramine, and L- and D-tyrosine.
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The investigators found that the bypass patients had much lower levels of amino acids known as branched-chain amino acids, and the amino acids phenylalanine and tyrosine.
Study: Can gastric bypass surgery help treat diabetes?
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This is consistent with the weak dityrosine fluorescence observed under UV light.
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Betacynin biosynthesis starts by the oxidation of tyrosine to dopa by a tyrosine hydroxylase.
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The synthesis of these hormones requires the amino acid tyrosine and the trace mineral iodine.
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The "switch" effect (activation/inactivation) is mediated by the phosphorylation of specific tyrosine or serine/threonine residues on target proteins.
The Scientist
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Bond distances, angles, and dihedrals, as well as the force constants, were taken for analogy with amino acids having similar functional groups (tyrosine and serine).
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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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Many of the brain-supportive nutrients, including amino acids like tyrosine, special fats like phosphatidylserine, or parts of our normal biochemistry such as coenzyme Q10, acetyl-L-carnitine, alpha lipoic acid, and others, fall into this category.
The UltraMind Solution
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Norepinephrine is a potent vasoconstrictor synthesized from tyrosine in the presynaptic neuron.
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In animal cells serine, threonine and tyrosine are the amino acids subject to phosphorylation.
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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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I'm a catecholamine man myself: it's norepinephrine which does it -- that's a breakdown of tyrosine.
THE PRESIDENT'S CHILD
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In animal cells serine, threonine and tyrosine are the amino acids subject to phosphorylation.
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PTK787 is the most promising VEGF receptor- tyrosine kinase inhibitor in pipeline because of its potency in tumor inhibition and oral bioavailability.
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Foods high in arylalkylamines (tryptophan, tyrosine, tyramine, and phenylalanine) have also been implicated in triggering IC symptoms.
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Aminoacidopathies (maple syrup urine disease; homocystinuria; cobalamin deficiencies; tyrosinemia; urea cycle defects (ornithine transcarbamylase, carbamyl phosphate synthase, citrullinemia, argininosuccinic aciduria, arginase deficiencies) and non-ketotic hyperglycinemia)
Biochemical Genetics-Metabolic Disease
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Trypsin favors basic residues like lysine and arginine; chymotrypsin favors aromatic residues like phenylalanine, tyrosine, and tryptophan.
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The main pathway for tyrosine degradation involves conversion to fumarate and acetoacetate, allowing phenylalanine and tyrosine to be classified as both glucogenic and ketogenic.
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In addition, scientists observed that protein phosphorylation was limited to serine, threonine, and tyrosine residues.
The Scientist
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SHP-2, a cytoplasmic SH2 domain containing protein tyrosine phosphatase is involved in the signaling pathways of a variety of growth factors and cytokines.
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PTK787 is the most promising VEGF receptor- tyrosine kinase inhibitor in pipeline because of its potency in tumor inhibition and oral bioavailability.
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Dopamine is made from the amino acids phenylalanine and tyrosine through the action of three enzymes: phenylalanine hydroxylase, tyrosine hydroxylase, and amino acid decarboxylase.
Alcohol and The Addictive Brain
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The Competitive Intelligence Report c-MET/HGF Inhibitors as of February 2010 provides a competitor analysis in the development pipeline of novel emerging inhibitors of c-MET receptor tyrosine kinase (RTK) and its ligand hepatocyte growth factor
The Earth Times Online Newspaper
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Tyrosine in combination with any one of those would probably act synergistically to increase thermogenesis.
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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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The cleavage product, containing a tyrosine kinase domain, is translocated to the nucleus and is believed to phosphorylate nuclear substrates
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Likewise, choanoflagellates have five immunoglobulin domains, though they have no immune system; collagen, integrin and cadherin domains, though they have no skeleton or matrix binding cells together; and proteins called tyrosine kinases that are a key part of signaling between cells, even though Monosiga is not known to communicate, or at least does not form colonies.
An Animal Toolkit in a Single-Celled Organism
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Aminoacidopathies (maple syrup urine disease; homocystinuria; cobalamin deficiencies; tyrosinemia; urea cycle defects (ornithine transcarbamylase, carbamyl phosphate synthase, citrullinemia, argininosuccinic aciduria, arginase deficiencies) and non-ketotic hyperglycinemia)
Biochemical Genetics-Metabolic Disease
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I'm a catecholamine man myself: it's norepinephrine which does it -- that's a breakdown of tyrosine.
THE PRESIDENT'S CHILD
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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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The most widely accepted and significant leukemogenic mechanism attributed to the fusion protein involves the constitutive stimulation of tyrosine kinase.
