RIBOSOME, RIBOSOME-SECY COMPLEX, PROTEIN TRANSLOCATION, CELL MEMBRANE, MEMBRANE, PROTEIN TRANSPORT, TRANSLOCATION, TRANSMEMBRANE, TRANSPORT, REPRESSOR, RIBONUCLEOPROTEIN, RIBOSOMAL PROTEIN, RNA-BINDING, RRNA-BINDING, TRANSLATION REGULATION, TRNA- BINDING, ACETYLATION, METHYLATION, ANTIBIOTIC RESISTANCE, TRANSCRIPTION, TRANSCRIPTION REGULATION, TRANSCRIPTION TERMINATION, PHOSPHOPROTEIN 3KCR RIBOSOME-SECY COMPLEX. THIS ENTRY 3KCR CONTAINS 50S RIBOSOMAL SUBNIT. THE 30S RIBOSOMAL SUBUNIT CAN BE FOUND IN PDB ENTRY 3KC4