title: Large-scale purification of prosomes from calf's liver.
abstract: Prosomes, cytoplasmatic ribonucleoprotein complexes containing small ribonucleic acid (19S small cytoplasmic RNPs), are ubiquitous in eukaryotic organisms. A new method for the preparation of prosomes in large amounts, starting with ca. 2 kg of calf's liver, is described. A combination of centrifugation and low- and high-pressure chromatography was used to purify intact particles. An alternative purification of prosomes with Solanum tuberosum agglutinin bound to divinyl sulphone-activated agarose is discussed. Calf's liver prosomes have a similar protein composition and RNA content to prosomes isolated from other tissues.
authors.affiliation: Biologisches Institut, Universität Stuttgart, F.R.G.
authors.forename: W
authors.initials: W
authors.lastname: Tomek
authors.forename: J
authors.initials: J
authors.lastname: Buri
authors.forename: R
authors.initials: R
authors.lastname: Vallon
authors.forename: H P
authors.initials: HP
authors.lastname: Schmid
mesh_terms: D000818:Animals; D002417:Cattle; D002850:Chromatography, Gel; D002851:Chromatography, High Pressure Liquid; D002852:Chromatography, Ion Exchange; D003593:Cytoplasm / Q000737:chemistry; D004591:Electrophoresis, Polyacrylamide Gel; D008099:Liver / Q000737:chemistry* / Q000648:ultrastructure; D012313:RNA / Q000302:isolation & purification / Q000378:metabolism*; D012261:Ribonucleoproteins / Q000302:isolation & purification* / Q000378:metabolism; D014461:Ultracentrifugation
chemical_list: D012261:Ribonucleoproteins; D012313:RNA