title: [Purification of alkaline proteinase from Bacillus subtilis 72 using ion-exchange chromatography].
abstract: Alkaline proteinase was isolated from the culture fluid filtrate obtained as a result of cultivation of Bacillus subtilis st. 72 using ion-exchange chromatography on a modified silochrome. Sorption of the enzyme at pH 6.0-6.3 and desorption at pH 7.5-7.8 followed by ultrafiltration through the membrane UAM-150 (USSR) resulted in a 5-fold increase of the enzyme specific activity calculated in respect of protein and an activity yield of 84%.
mesh_terms: D001412:Bacillus subtilis / Q000201:enzymology*; D002852:Chromatography, Ion Exchange; D010450:Endopeptidases / Q000302:isolation & purification*; D012697:Serine Endopeptidases
chemical_list: D010450:Endopeptidases; D012697:Serine Endopeptidases; C032923:microbial serine proteinases
vernacular_title: Ochistka shchelochnoĭ proteinazy iz Bacillus subtilis 72 s pomoshch'iu ionnoobmennoĭ khromatografii.