title: Separation and partial characterization of two galactosyltransferase isoforms from malignant ascitic fluid.
abstract: Galactosyltransferase was isolated from human malignant ascites by ammonium sulphate precipitation, alpha-lactalbumin affinity chromatography and by the removal of contaminating immunoglobulins with protein A chromatography. Two isoforms of galactosyltransferase were separated by DEAE chromatography, and partially characterised by gel filtration, non-denaturing polyacrylamide gel electrophoresis, concanavalin A binding and enzyme kinetics. The two forms isolated were compared with the isoenzymes previously described and the biochemical basis for the difference between the two forms discussed.
mesh_terms: D001202:Ascitic Fluid / Q000201:enzymology*; D002846:Chromatography, Affinity; D002848:Chromatography, DEAE-Cellulose; D002850:Chromatography, Gel; D005700:Galactosyltransferases / Q000302:isolation & purification*; D006801:Humans; D007527:Isoenzymes / Q000302:isolation & purification*; D009369:Neoplasms / Q000201:enzymology*
chemical_list: D007527:Isoenzymes; D005700:Galactosyltransferases