Chain initiation in primitive protein synthesis: a 60S intermediate in the formation of active 70S ribosomes.

Bacterial Proteins/biosynthesis Binding Sites Escherichia coli/cytology,metabolism Guanine Nucleotides/metabolism Models, Chemical Peptides/metabolism Phenylalanine/metabolism Phosphorus Isotopes Polynucleotides/metabolism RNA, Transfer/metabolism Ribosomes/analysis,metabolism Ultracentrifugation Uracil Nucleotides/metabolism

Bacterial Proteins Guanine Nucleotides Peptides Phosphorus Isotopes Polynucleotides Uracil Nucleotides Phenylalanine RNA, Transfer