An improved method for the isolation of yeast nuclei active in RNA synthesis in vitro.

Cell Fractionation Cell Nucleus/analysis,enzymology Centrifugation, Density Gradient DNA-Directed RNA Polymerases/metabolism Evaluation Studies as Topic Methods Microscopy, Phase-Contrast Povidone RNA/biosynthesis Saccharomyces cerevisiae/cytology,enzymology Sorbitol Spectrophotometry, Ultraviolet Tritium Uracil Nucleotides

Uracil Nucleotides Tritium Sorbitol RNA DNA-Directed RNA Polymerases Povidone