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vicia graminea/lectin
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[Structural characteristics of the blood group N determinant, tested with anti-N lectin from Vicia graminea].
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Crude extracts of Vicia graminea seeds agglutinate human N erythrocytes as anti-N immunsera. The anti-N lectin is purified after precipitations with ammonium sulphate of crude extracts, DE52 Whatman chromatography and sephadex G150 gel filtration. Its homogeneity is demonstrated by physical and
Subunit structure of Vicia graminea anti-(blood-group N) lectin.
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The subunit of the Vicia graminea lectin with blood-group-N specificity was examined by sodium dodecyl sulphate/polyacrylamide-gel electrophoresis and gel filtration in 6M-guanidinium chloride, and its molecular weights was found to be 25 000. The unique N-terminal sequence fof the first nine
Vicia graminea anti-N lectin: partial characterization of the purified lectin and its binding to erythrocytes.
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Vicia graminea lectin, purified by affinity chromatography, was homogeneous in sodium dodecylsulphate/polyacrylamide gel electrophoresis and migrated with a velocity corresponding to a molecular weight of 125 000. Heating of 0.1% sodium dodecylsulphate at 100 degrees C caused dissociation of the
Preliminary investigation of the structure of the carbohydrate component of Vicia graminea lectin, a plant glycoprotein.
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Purified Vicia graminea lectin, isolated from seeds, was found to contain D-mannose, 2-acetamido-2-deoxy-D-glucose, L-fucose, D-galactose, and D-xylose in the molar ratios approximately 3.9:1.5:1.2:1.1:1.0. The oligosaccharides, obtained after hydrazinolysis of Vg-lectin, were N-reacetylated,
Purification and characterization of a lectin (plant hemagglutinin) with N blood group specificity from Vicia graminea seeds.
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A lectin with N blood group specificity was isolated from Vicia graminea seeds. This lectin was purified from a crude extract by precipitation with ammonium sulfate, DEAE-cellulose chromatography and Sephadex G-150 gel filtration. Purification steps were followed by increase of specific activity.
Interaction of Vicia graminea anti-N lectin with cell surface glycoproteins from erythrocytes with rare blood group antigens.
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The erythrocyte receptors for Vicia graminea (Vg) anti-N lectin have been investigated after 125I-labelling of the purified lectin and binding to membrane components separated by dodecyl sulphate polyacrylamide gel electrophoresis. GP alpha (synonym glycophorin A or MN glycoprotein) and GP delta
Effect of pH on the binding of Vicia graminea lectin to erythrocytes. Dependence on the chemical character of red-cell receptors.
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Binding of the radioactive Vicia graminea lectin to human blood-group M and N erythrocytes and to horse erythrocytes was studied at pH 6-10. Binding of the lectin to untreated human erythrocytes and to those treated with Vibrio cholerae neuraminidase increased severalfold from pH 6 to pH 8 and was
[Vicia graminea lectin or Vicia unijuga lectin-binding (Vgu) glycoproteins as new tumor-associated substances].
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The purification and serological and chemical properties of Vicia graminea lectin (VGA) and Vicia unijuga lectin (VUA) were described, and then the binding-specificity of anti-M and -N antibodies and both the lectins was discussed in this review. On the basis of the facts that Vgu glycoproteins
Presence of Vicia graminea lectin- and Vicia unijuga lectin-binding (Vgu) glycoproteins in human fetal membranes and some of their biochemical properties.
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We have previously reported that Vicia graminea lectin (VGA)- and Vicia unijuga lectin (VUA)-binding glycoproteins (Vgu glycoproteins), malignant tumor-associated antigens, exist in human meconium and amniotic fluid. To examine the origin of Vgu glycoprotein, their presence, some of their chemical
Biosynthesis of Vicia graminea lectin- and Vicia unijuga lectin-binding glycoproteins in human tumor and nontumor cells and an estimation of its epitope structure.
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We investigated biosynthesis of Vicia graminea lectin (VGA)- and Vicia unijuga lectin (VUA)-binding (Vgu) glycoproteins, which are human malignant tumor-associated antigens, in cultured human tumor and non-tumor cells by pulse-labeling experiments with [35S]-methionine, followed by
Enhanced reaction with Vicia graminea lectin and exposed terminal N-acetyl-D-glucosaminyl residues on a sample of human red cells with Hb M-Hyde Park.
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A sample of polyagglutinable red cells was obtained from a healthy individual (group O, N) possessing a hemoglobin (Hb) variant called Hb M-Hyde Park. The sialic acid content of the individual's red cells is 90 percent of normal, and his cells are agglutinated by monoclonal but not lectin anti-Tn, a
Isolation and characterization of a Vicia graminea and Vicia unijuga lectins-binding (Vgu) glycoprotein with Thomsen-Friedenreich (T) activity from human liver metastases of pancreas carcinoma.
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1. Perchloric acid-soluble fraction from liver metastases of pancreas carcinoma of a patient with blood group B, was subjected to a systematic affinity chromatography using Vicia unijuga lectin (VUA) and Arachis hypogaea anti-T lectin (PNA) as immobilized ligands and separated into three fractions,
Presence of Vicia graminea or Vicia unijuga lectin-binding (Vgu) glycoproteins with and without Thomsen-Friedenreich (T) antigen in normal human seminal plasma.
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Vgu glycoprotein (Vicia graminea lectin- or Vicia unijuga lectin-binding glycoprotein) has been reported as oncofetal antigen, which is found in many kind of tumor tissues, amniotic fluid and fetal membranes. In autoradiography with an 125I-labeled Vicia unijuga lectin (VUA) probe and an
Investigation of Vicia graminea lectin- and Vicia unijuga lectin-binding glycoproteins as novel oncofetal antigens in cyst and ascitic fluids of human ovarian tumors in benign, dysplastic, and malignant stages.
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Perchloric acid-soluble fractions (PASFs) were obtained from cyst fluids of human benign ovarian mucinous cystadenoma, benign dermoid cyst, "borderline" mucinous cystadenoma, and malignant ovarian clear cell carcinoma, and from fluids of malignant embryonal carcinoma and malignant serous
Presence of Vicia graminea lectin- and Vicia unijuga lectin-binding (Vgu) glycoprotein in human amniotic fluid and some of its chemical and serological properties.
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Vicia graminea- and Vicia unijuga-binding glycoprotein (Vgu glycoprotein) has been reported as a malignant tumor-associated antigen, which is found in various kinds of malignant tumor-tissues and ascitic and cyst fluids of malignant tumor patients, but not found in 20 kinds of normal human tissues.
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