title: Preparation and fractionation of mammalian extracts active in pre-mRNA splicing.
authors.forename: A
authors.initials: A
authors.lastname: Krämer
authors.forename: W
authors.initials: W
authors.lastname: Keller
mesh_terms: D002458:Cell Fractionation / Q000379:methods; D002467:Cell Nucleus / Q000378:metabolism / Q000648:ultrastructure; D002474:Cell-Free System; D002498:Centrifugation / Q000379:methods; D002850:Chromatography, Gel / Q000379:methods; D002852:Chromatography, Ion Exchange; D002853:Chromatography, Liquid / Q000379:methods; D006367:HeLa Cells / Q000378:metabolism; D006801:Humans; D012322:RNA Precursors / Q000235:genetics*; D012326:RNA Splicing
chemical_list: D012322:RNA Precursors