Isolation of a protein fraction from reticulocyte ribosomes required for de novo synthesis of hemoglobin.

Amino Acids/metabolism Animals Carbon Isotopes Chromatography, Gel Chromatography, Ion Exchange Ethylmaleimide Hemoglobins/biosynthesis Isoleucine/analysis Molecular Weight Peptide Hydrolases Polynucleotides Potassium Chloride Proteins RNA, Messenger RNA, Transfer Rabbits Reticulocytes/analysis Ribonucleases Ribosomes/analysis Tritium Trypsin Ultracentrifugation Uracil Nucleotides Valine/analysis

Amino Acids Carbon Isotopes Hemoglobins Polynucleotides Proteins RNA, Messenger Uracil Nucleotides Isoleucine Tritium Potassium Chloride RNA, Transfer Ribonucleases Peptide Hydrolases Trypsin Valine Ethylmaleimide