Uptake of polynucleotides by intact mammalian cells. XI. pH-dependent permeability changes for synthetic ribopolymers.

Adenine Nucleotides/metabolism Animals Biological Transport Carbon Isotopes Cell Membrane/metabolism Cell Membrane Permeability Cytosine Nucleotides/metabolism Hydrogen-Ion Concentration Mice Neoplasm Transplantation Nucleic Acid Conformation Pancreas/enzymology Phosphoric Diester Hydrolases Polynucleotides/metabolism Protein Binding Ribonucleases Ribonucleotides/metabolism Sarcoma, Experimental/metabolism Snakes Time Factors Trichloroacetic Acid Tritium Uracil Nucleotides/metabolism Venoms

Adenine Nucleotides Carbon Isotopes Cytosine Nucleotides Polynucleotides Ribonucleotides Uracil Nucleotides Venoms Tritium Trichloroacetic Acid Ribonucleases Phosphoric Diester Hydrolases