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Σελίδα 1 από 91 Αποτελέσματα
Profilin in Phaseolus vulgaris is encoded by two genes (only one expressed in root nodules) but multiple isoforms are generated in vivo by phosphorylation on tyrosine residues.
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Actin-binding proteins such as profilins participate in the restructuration of the actin cytoskeleton in plant cells. Profilins are ubiquitous actin-, polyproline-, and inositol phospholipid-binding proteins, which in plants are encoded by multigene families. By 2D-PAGE and immunoblotting, we
Fluorescence polarization decay of tyrosine in lima bean trypsin inhibitor.
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The fluorescence of lima bean trypsin inhibitor is due to a single tyrosine residue at position 69. The lifetime of this tyrosine fluorescence is 620 +/- 50 ps (mean +/- SD) and is little affected by addition of 0.88 M citrate, an efficient quencher of tyrosine fluorescence. The steady-state
Spectroscopy and fluorescence quenching of tyrosine in lima bean trypsin/chymotrypsin inhibitor and model peptides.
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The effects of citrate ion concentration and pH on the optical spectra and fluorescence decay have been measured for several tyrosine model compounds and lima bean trypsin/chymotrypsin inhibitor, a protein containing one tyrosine at position 69 and seven disulfides but no tryptophan, in order to
Localization of tyrosine hydroxylase in neuronal targets and efferents of the area postrema in the nucleus tractus solitarii of the rat.
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Catecholamines in the nucleus tractus solitarii (NTS) have been implicated in autonomic responses to circulating hormones that act on neurons in the area postrema, the most caudal circumventricular organ in brain. We combined immunoperoxidase labeling of the anterograde tracer, Phaseolus vulgaris
Identification by high-performance liquid chromatography of tyrosine ammonia-lyase activity in purified fractions of Phaseolus vulgaris phenylalanine ammonia-lyase.
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Activities of phenylalanine ammonia-lyase (PAL) and tyrosine ammonia-lyase (TAL) were assessed at each stage of a three-step purification of PAL. Assays were performed by high-performance liquid chromatographic (HPLC) separation and ultraviolet detection of reaction products. Use of HPLC permitted
Profilin tyrosine phosphorylation in poly-L-proline-binding regions inhibits binding to phosphoinositide 3-kinase in Phaseolus vulgaris.
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The profilin family consists of a group of ubiquitous highly conserved 12-15 kDa eukaryotic proteins that bind actin, phosphoinositides, poly-l-proline (PLP) and proteins with proline-rich motifs. Some proteins with proline-rich motifs form complexes that have been implicated in the dynamics of the
Comparative study on the amino acids composition in three local Phaseolus vulgaris seeds varieties.
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The overall amino acid composition of the three varieties of Phaseolus vulgaris seeds were similar. All had a relative deficiency in the sulphur-containing amino acids, moreover, there was a negative correlation between sulphur amino acid content and the percentage of seed proteins. The lysine
The lethal protein from Kintoki beans (Phaseolus vulgaris) identified as a lectin.
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A glycoprotein isolated from Kintoki beans (Phaseolus vulgaris cultivar Kintoki) agglutinated human erythrocytes of all types and erythrocytes of rat, rabbit, sheep, and mouse. The lectin activity was not affected by 1 hr heating at 60 degrees C, but decreased slightly on heating for the same period
Characterization of trypsin inhibitors from Tora-mame seeds, one of the Japanese cultivars of Phaseolus vulgaris.
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Four isoinhibitors against bovine pancreatic trypsin were purified from Phaseolus vulgaris(cv. Tora-mame) seeds by extraction with water(pH 2.0), ammonium sulfate fractionation, gel chromatography on Sephacryl S-200, trypsin-Sepharose gel affinity chromatography, and chromatofocusing. They inhibit
Glutamatergic inputs from the pedunculopontine nucleus to midbrain dopaminergic neurons in primates: Phaseolus vulgaris-leucoagglutinin anterograde labeling combined with postembedding glutamate and GABA immunohistochemistry.
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To verify the possibility that the pedunculopontine nucleus is a source of glutamatergic terminals in contact with midbrain dopaminergic neurons in the squirrel monkey, we used the anterograde transport of Phaseolus vulgaris-leucoagglutinin in combination with preembedding immunohistochemistry for
pH induced single step shift of hydrophobic patches followed by formation of an MG state and an amyloidogenic intermediate in Lima Bean Trypsin Inhibitor (LBTI).
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Lima Bean Trypsin Inhibitor (LBTI) is 83 residues monomeric protein of 9.0 KDa, consisting of six antiparallel β-strands and can undergo concentration dependant dimerization. We have tried to characterize folding intermediates of LBTI under equilibrium denaturation conditions. We have used various
Biosynthesis of phytoquinones. Biosynthetic origins of the nuclei and satellite methyl groups of plastoquinone, tocopherols and tocopherolquinones in maize shoots, bean shoots and ivy leaves.
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1. By using dl-[ring-(14)C]phenylalanine, dl-[beta-(14)C]phenylalanine, dl-[alpha-(14)C]-tyrosine and dl-[beta-(14)C]tyrosine it was shown that in maize shoots (Zea mays) the nucleus and one nuclear methyl group of each of the following compounds, plastoquinone, gamma-tocopherol (aromatic nucleus)
Circular dichroism tests on the effect of alkali on conformation of lectins.
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The structural properties of eight lectins (agglutinins) were studied by the circular dichroism (CD) probe. The lectin from Maclura pomifera (osage orange seed) exhibited in the far-ultraviolet spectral zone a positive CD band centered at 201 nm, whereas the other lectins had positive bands at
Galectin-1-mediated cell adhesion, invasion and cell death in human anaplastic large cell lymphoma: regulatory roles of cell surface glycans.
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Galectin-1 is known to be one of the extracellular matrix proteins. To elucidate the biological roles of galectin-1 in cell adhesion and invasion of human anaplastic large cell lymphoma, we performed cell adhesion and invasion assays using the anaplastic large cell lymphoma cell line H-ALCL, which
Conidiogenic effects of mannose-binding lectins isolated from cotyledons of red kidney bean (Phaseolus vulgaris) on Alternaria alternata.
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Effect of proteinaceous extracts from red kidney bean cotyledons on mycelium of Alternaria alternata growing on potato dextrose agar (PDA) plates was investigated. Unexpectedly, conidia formation was induced in response to applied crude extracts. A PDA disc method was developed to quantify conidia
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