Purification of diphtheria toxin by chromatography on Cibacron Blue-Sepharose. 1983

G Antoni, and M Bigio, and G Borri, and M C Casagli, and P Neri

Diphtheria toxin binds to Cibacron Blue-Agarose and may be eluted by increasing the ionic strength of the elution buffer. Experiments using difference spectroscopy showed that the interaction between toxin and dye is ionic rather than hydrophobic, and therefore it is of a different nature with respect to that usually found in nucleotide-requiring enzymes.

UI MeSH Term Description Entries
D002846 Chromatography, Affinity A chromatographic technique that utilizes the ability of biological molecules, often ANTIBODIES, to bind to certain ligands specifically and reversibly. It is used in protein biochemistry. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Chromatography, Bioaffinity,Immunochromatography,Affinity Chromatography,Bioaffinity Chromatography
D004167 Diphtheria Toxin An ADP-ribosylating polypeptide produced by CORYNEBACTERIUM DIPHTHERIAE that causes the signs and symptoms of DIPHTHERIA. It can be broken into two unequal domains: the smaller, catalytic A domain is the lethal moiety and contains MONO(ADP-RIBOSE) TRANSFERASES which transfers ADP RIBOSE to PEPTIDE ELONGATION FACTOR 2 thereby inhibiting protein synthesis; and the larger B domain that is needed for entry into cells. Corynebacterium Diphtheriae Toxin,Toxin, Corynebacterium Diphtheriae
D004396 Coloring Agents Chemicals and substances that impart color including soluble dyes and insoluble pigments. They are used in INKS; PAINTS; and as INDICATORS AND REAGENTS. Coloring Agent,Dye,Dyes,Organic Pigment,Stain,Stains,Tissue Stain,Tissue Stains,Organic Pigments,Pigments, Inorganic,Agent, Coloring,Inorganic Pigments,Pigment, Organic,Pigments, Organic,Stain, Tissue,Stains, Tissue
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000873 Anthracenes A group of compounds with three aromatic rings joined in linear arrangement.
D012685 Sepharose Agarose,Sepharose 4B,Sepharose C1 4B,4B, Sepharose C1,C1 4B, Sepharose
D012709 Serum Albumin A major protein in the BLOOD. It is important in maintaining the colloidal osmotic pressure and transporting large organic molecules. Plasma Albumin,Albumin, Serum
D013053 Spectrophotometry The art or process of comparing photometrically the relative intensities of the light in different parts of the spectrum.

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