Preparation of deglycosylated egg white avidin. 1995

E A Bayer, and F De Meester, and T Kulik, and M Wilchek
Department of Biophysics, Weizmann Institute of Science, Rehovot, Israel.

A simple procedure for the preparation of deglycosylated avidin is described. Commercially obtained avidin was treated with a mixed microbial culture. The cells were capable of growing on the oligosaccharide residues, but generally ignored the polypeptide portion of the egg white glycoprotein. The resultant deglycosylated avidin retained its biotin-binding characteristics. The major bacterial strain (strain BECH080), responsible for the deglycosylation, was isolated. On the basis of elementary biochemical tests, fatty acid, and phenotypic analyses, the isolate was identified as a strain of Flavobacterium meningosepticum. The primary enzymatic activity that caused the removal of the oligosaccharide residues of avidin appeared to be similar to endoglycosidase F.

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
D003208 Concanavalin A A MANNOSE/GLUCOSE binding lectin isolated from the jack bean (Canavalia ensiformis). It is a potent mitogen used to stimulate cell proliferation in lymphocytes, primarily T-lymphocyte, cultures.
D004529 Egg White The white of an egg, especially a chicken's egg, used in cooking. It contains albumin. (Random House Unabridged Dictionary, 2d ed) Egg Whites
D005417 Flavobacterium A genus of gram-negative, aerobic, rod-shaped bacteria widely distributed in SOIL and WATER. Its organisms are also found in raw meats, MILK and other FOOD, hospital environments, and human clinical specimens. Some species are pathogenic in humans.
D006031 Glycosylation The synthetic chemistry reaction or enzymatic reaction of adding carbohydrate or glycosyl groups. GLYCOSYLTRANSFERASES carry out the enzymatic glycosylation reactions. The spontaneous, non-enzymatic attachment of reducing sugars to free amino groups in proteins, lipids, or nucleic acids is called GLYCATION (see MAILLARD REACTION). Protein Glycosylation,Glycosylation, Protein
D001360 Avidin A specific protein in egg albumin that interacts with BIOTIN to render it unavailable to mammals, thereby producing biotin deficiency.
D001710 Biotin A water-soluble, enzyme co-factor present in minute amounts in every living cell. It occurs mainly bound to proteins or polypeptides and is abundant in liver, kidney, pancreas, yeast, and milk. Vitamin H,Biodermatin,Biokur,Biotin Gelfert,Biotin Hermes,Biotin-Ratiopharm,Biotine Roche,Deacura,Gabunat,Medebiotin,Medobiotin,Rombellin,Biotin Ratiopharm,Gelfert, Biotin,Hermes, Biotin,Roche, Biotine
D017038 Mannosyl-Glycoprotein Endo-beta-N-Acetylglucosaminidase A group of related enzymes responsible for the endohydrolysis of the di-N-acetylchitobiosyl unit in high-mannose-content glycopeptides and GLYCOPROTEINS. Di-N-Acetylchitobiosyl beta-N-Acetylglucosaminidase,Endo-beta-Acetylglucosaminidase,Endoglycosidase F,Endo D Endoglucosaminidase,Endo F Endoglucosaminidase,Endo H Endoglucosaminidase,Endo-N-Acetyl-beta-d-glucosaminidase,Endo-beta-N-Acetylglucosaminidase D,Endo-beta-N-Acetylglucosaminidase F,Endo-beta-N-Acetylglucosaminidase H,Endoglucosaminidase D,Endoglucosaminidase F,Endoglucosaminidase H,Endoglucosidase H,Endoglycosidase D,Endohexosaminidase F,Endohexosaminidase H,Peptide N-Glycosidase F,Di N Acetylchitobiosyl beta N Acetylglucosaminidase,Endo N Acetyl beta d glucosaminidase,Endo beta Acetylglucosaminidase,Endo beta N Acetylglucosaminidase D,Endo beta N Acetylglucosaminidase F,Endo beta N Acetylglucosaminidase H,Endo-beta-N-Acetylglucosaminidase, Mannosyl-Glycoprotein,Mannosyl Glycoprotein Endo beta N Acetylglucosaminidase,Peptide N Glycosidase F,beta-N-Acetylglucosaminidase, Di-N-Acetylchitobiosyl

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