How To Use Histidine In A Sentence
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The mixture was later solidified by means of a surface agar solution containing traces of histidine and biotin.
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During this time he developed a simple chromatographic assay for imidazole compounds accumulating in histidine-requiring Neurospora mutants, which allowed him to deduce much of the histidine biosynthetic pathway.
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Specific gene sets associated with the central metabolism of C. aurimucosum apparently provide enhanced metabolic flexibility and adaptability in aerobic, anaerobic and low-pH environments, including gene clusters for the uptake and degradation of aromatic amines, L-histidine and L-tartrate as well as a gene region for the formation of selenocysteine and its incorporation into formate dehydrogenase.
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Histidines are often involved in acid base catalysis, and prone to activate nucleophiles by abstracting a proton.
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Similarly, histamine arises in many tissues by the decarboxylation of histidine, which in excess causes constriction or dilation of various blood vessels.
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The active site of trypsin involves a catalytic triad consisting of the amino acids serine, histidine and aspartic acid.
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Although two additional histidine residues are potentially accessible, we focused on the two histidines unique to cx 50 because cx 46 hemichannels were refractory to modification by DEPC.
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This dipeptide (comprising two amino acids - histidine and beta-alanine) is found in fairly high amounts in muscle cells.
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The amount of the amino acids threonine, proline and histidine were also increased in roots of slag-cultivated maize plants.
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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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They also hoped histidines would produce a more evenly distributed metallic coat than can be accomplished with electroless coating.
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The corresponding protein expressed as a fusion with a N-terminal hexahistidine tag cleavable with thrombin.
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The amount of the amino acids threonine, proline and histidine were also increased in roots of slag-cultivated maize plants.
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Thus for example in comparison with the remaining proteins they contain larger amounts of diamino acids, especially diaminovaleric acid, and the amidine groups attached to it; histidine can also occur in them in large amounts.
Albrecht Kossel - Nobel Lecture
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Aberystwyth researchers hypothesize that evolution has selected for low-histidine and trypotophan content in phycocyanins to reduce electron-transport interference.
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The GPP protein also contains several regions rich in alanine, proline, histidine, and glutamine.
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Systems for sensing specific sugars, such as galactose or maltose, or specific amino acids, such as histidine or proline, also are present.
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In 1896 he discovered histidine, then worked out the classical method for the quantitaive separation of the hexone bases.
Albrecht Kossel - Biography
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State and his team found a family with TS with a rare mutation in a gene called 1-histidine de carboxylase (HDC).
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Colored lines connect histidine kinase and response regulator proteins belonging to the same signaling pathway or species phyletic cluster.
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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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Fibers are continuous, separated by matrix, and consist of chimeric collagens that encompass within the same primary protein structure domains corresponding to collagen, polyhistidine, and either elastin or dragline spider silk.
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By mutations that place the histidine in a similar distance to the heme as in the active site of peroxidases, compound I of myoglobin has been observed, probably owing to an increased rate of heterolysis.
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Signal transduction by these systems usually involves autophosphorylation of a histidine kinase on a conserved histidine residue and subsequent transfer of the phosphoryl group to a conserved aspartate on a receiver domain.
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The amount of the amino acids threonine, proline and histidine were also increased in roots of slag-cultivated maize plants.
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Amino acids like histidine and glutamic acid that readily form complexes with chromium were also shown to increase absorption.
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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 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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The most prevalent amino acid is cysteine with other major ones including tyrosine, histidine, lysine and arginine.
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The sturine obtained from sturgeon roe contains for ex-ample all four of the previously mentioned nitrogen-rich groups of the protein molecule: two diamino acids of which one is combined with the amidine groups, and in addition, histidine.
Albrecht Kossel - Nobel Lecture
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In addition to histidine and biotin, the top agar contained minimal tryptophan to support E.coli growth.
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In humans, histamine is synthesized from histidine, a conditionally-essential amino acid.
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A2 cows produce this protein with a proline at number 67, whereas A1 cows have a mutated proline amino acid, which converts it to histidine.
Dr. Joseph Mercola: Why You Shouldn't Drink Pasteurized Milk
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Children also require two further amino acids, histidine and arginine.
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To determine whether hermaphrodite flowers in andromonoecious and hermaphrodite plants is due to loss of a CsACS2 enzymatic activity, we expressed the four different forms of the protein as six-histidine tag (His
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Conventional modeling of the amino acid side chains was used, that is, the zinc ligands aspartate, cysteinate, and histidine were modeled by acetate, methylthiolate, and imidazole, respectively.
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The essential amino acids are histidine, tryptophan, threonine, valine, phenylalanine, leucine, methionine, lysine, and isoleusine.
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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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Treatment with the histidine modifying reagent DEPC largely mimics the effects of low pH i.
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Thus, we formulated our KAA diet by replacing part of the natural casein-derived protein with a KAA mixture that excluded the "anorectic" methionine and histidine.
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Starvation for histidine derepresses the entire operon, the longest then known.
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This reaction causes the shift of a neighboring amino acid, which eventually leads to the rigidification of two otherwise flexible loops, one of which provides two histidine residues necessary to complete the enzymatically competent active site architecture.
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