Affinity purification of hexosaminidases. 1987

P Sankaranarayanan, and S Chandrasekaran, and R Puvanakrishnan, and S C Dhar, and S Gopalakrishnan, and N Rangabashyam
Institute of Biochemistry, Madras Medical College, India.

Hexosaminidases A and B were purified by affinity chromatography from normal gastric mucosa, after preliminary separation of isozymes by anion exchange chromatography. Heparin and mannosamine were coupled to Sepharose 4B and used as affinity matrices and the purified enzymes were found to be homogeneous when analysed by polyacrylamide slab gel electrophoresis. This combination of 2 novel affinity chromatographic procedures is superior to existing methods in that a final yield of over 70% could be achieved. Also, the number of steps required to obtain homogeneity are less in contrast to the conventional methods used previously.

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
D002852 Chromatography, Ion Exchange Separation technique in which the stationary phase consists of ion exchange resins. The resins contain loosely held small ions that easily exchange places with other small ions of like charge present in solutions washed over the resins. Chromatography, Ion-Exchange,Ion-Exchange Chromatography,Chromatographies, Ion Exchange,Chromatographies, Ion-Exchange,Ion Exchange Chromatographies,Ion Exchange Chromatography,Ion-Exchange Chromatographies
D004591 Electrophoresis, Polyacrylamide Gel Electrophoresis in which a polyacrylamide gel is used as the diffusion medium. Polyacrylamide Gel Electrophoresis,SDS-PAGE,Sodium Dodecyl Sulfate-PAGE,Gel Electrophoresis, Polyacrylamide,SDS PAGE,Sodium Dodecyl Sulfate PAGE,Sodium Dodecyl Sulfate-PAGEs
D005753 Gastric Mucosa Lining of the STOMACH, consisting of an inner EPITHELIUM, a middle LAMINA PROPRIA, and an outer MUSCULARIS MUCOSAE. The surface cells produce MUCUS that protects the stomach from attack by digestive acid and enzymes. When the epithelium invaginates into the LAMINA PROPRIA at various region of the stomach (CARDIA; GASTRIC FUNDUS; and PYLORUS), different tubular gastric glands are formed. These glands consist of cells that secrete mucus, enzymes, HYDROCHLORIC ACID, or hormones. Cardiac Glands,Gastric Glands,Pyloric Glands,Cardiac Gland,Gastric Gland,Gastric Mucosas,Gland, Cardiac,Gland, Gastric,Gland, Pyloric,Glands, Cardiac,Glands, Gastric,Glands, Pyloric,Mucosa, Gastric,Mucosas, Gastric,Pyloric Gland
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001619 beta-N-Acetylhexosaminidases A hexosaminidase specific for non-reducing N-acetyl-D-hexosamine residues in N-acetyl-beta-D-hexosaminides. It acts on GLUCOSIDES; GALACTOSIDES; and several OLIGOSACCHARIDES. Two specific mammalian isoenzymes of beta-N-acetylhexoaminidase are referred to as HEXOSAMINIDASE A and HEXOSAMINIDASE B. Deficiency of the type A isoenzyme causes TAY-SACHS DISEASE, while deficiency of both A and B isozymes causes SANDHOFF DISEASE. The enzyme has also been used as a tumor marker to distinguish between malignant and benign disease. beta-N-Acetylhexosaminidase,N-Acetyl-beta-D-hexosaminidase,beta-Hexosaminidase,beta-N-Acetyl-D-hexosaminidase,beta-N-Acetyl-hexosaminidase,N Acetyl beta D hexosaminidase,beta Hexosaminidase,beta N Acetyl D hexosaminidase,beta N Acetyl hexosaminidase,beta N Acetylhexosaminidase,beta N Acetylhexosaminidases

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