title: Purification and properties of a beta-1,6-glucanase from Penicillium brefeldianum.
abstract: An inducible endo-beta-1,6-glucanase was purified from Penicillium brefeldianum by DEAE-cellulose, Bio-Gel P-150 and high-pressure liquid chromatography. The final preparation was essentially free from beta-1,3-glucanase and beta-glucosidase activities. Sodium dodecyl sulphate/polyacrylamide-gel electrophoresis revealed one protein band with an Mr of 44000. The Vmax. and Km values were calculated to be 624 units (mumol/min)/mg and 2.78 mg/ml respectively. The glucanase had lytic activity against mycelial cells of the yeast Candida albicans. The yield of purified beta-1,6-glucanase from 100 mg dry weight of freeze-dried culture filtrate varied from 60 to 180 units.
mesh_terms: D002848:Chromatography, DEAE-Cellulose; D004591:Electrophoresis, Polyacrylamide Gel; D004790:Enzyme Induction; D006026:Glycoside Hydrolases / Q000302:isolation & purification / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008970:Molecular Weight; D010407:Penicillium / Q000201:enzymology*; D013696:Temperature
chemical_list: D006026:Glycoside Hydrolases; C020105:endo-1,6-beta-glucanase