title: Purification of the constituent enzyme fractions of mycobacillin synthetase.
abstract: The final purification of the three-fraction enzyme complex mycobacillin synthetase was done by hydroxyapatite column chromatography and sucrose-density-gradient centrifugation; each of the fractions obtained migrates as a single component in SDS/polyacrylamide-gel electrophoresis and gel electrofocusing. The Mr of the enzyme fractions A, B and C by gel filtration is 260 000, 190 000 and 105 000, and that by SDS/polyacrylamide-gel electrophoresis is 252 000, 198 000 and 108 000 respectively. None of the enzyme fractions appears to possess subunit structure.
mesh_terms: D002499:Centrifugation, Density Gradient; D002846:Chromatography, Affinity; D002850:Chromatography, Gel; D004591:Electrophoresis, Polyacrylamide Gel; D008970:Molecular Weight; D009097:Multienzyme Complexes; D010453:Peptide Synthases / Q000302:isolation & purification*
chemical_list: D009097:Multienzyme Complexes; D010453:Peptide Synthases; C042173:mycobacillin synthetase