On the catalytic center of peptidyl transfer: a part of the 50 S ribosome structure.

Bacterial Proteins/biosynthesis,metabolism Binding Sites Carbon Isotopes Centrifugation, Density Gradient Chloramphenicol/metabolism Electrophoresis, Disc Escherichia coli/cytology,enzymology,metabolism Methods Nucleoproteins Peptide Biosynthesis Phenylalanine/metabolism Polynucleotides/metabolism RNA, Bacterial Ribosomes/enzymology,metabolism Spectrophotometry Transferases/metabolism Ultraviolet Rays Uracil Nucleotides/metabolism

Bacterial Proteins Carbon Isotopes Nucleoproteins Polynucleotides RNA, Bacterial Uracil Nucleotides Phenylalanine Chloramphenicol Transferases