title: Deacetylation of PS-5, a new beta-lactam compound. II. Separation and purification of L- and D-amino acid acylases from Pseudomonas sp. 1158.
abstract: L-Amino acid acylase and D-amino acid acylase of Pseudomonas sp. 1158 which converted PS-5 to NS-5 (deacetylated PS-5) were separated and purified by sonication, streptomycin and ammonium sulfate fractionations, DEAE-Sephacel column chromatography and gel filtration. Molecular weight and the isoelectric point were estimated to be 75,000 and pI 5.45 for L-amino acid acylase and 100,000 and pI 4.95 for D-amino acid acylase.
mesh_terms: D000217:Acyltransferases / Q000302:isolation & purification*; D000900:Anti-Bacterial Agents / Q000378:metabolism*; D002850:Chromatography, Gel; D007525:Isoelectric Focusing; D008970:Molecular Weight; D011549:Pseudomonas / Q000201:enzymology*; D013237:Stereoisomerism; D013845:Thienamycins; D047090:beta-Lactams / Q000378:metabolism
chemical_list: D000900:Anti-Bacterial Agents; D013845:Thienamycins; D047090:beta-Lactams; C016883:PS 5; D000217:Acyltransferases