2WDI RIBOSOME, METHYLATION, TRANSLATION, PAROMOMYCIN, TRNA-BINDING, TRNA, ZINC, MRNA, REPRESSOR, RNA-BINDING, RIBONUCLEOPROTEIN, TRANSLATION REGULATION, RRNA-BINDING, METAL-BINDING, RIBOSOMAL PROTEIN STRUCTURE OF THE THERMUS THERMOPHILUS 70S RIBOSOME IN COMPLEX WITH MRNA, PAROMOMYCIN, ACYLATED A-SITE TRNA, DEACYLATED P-SITE TRNA, AND E-SITE TRNA. THIS FILE CONTAINS THE 50S SUBUNIT FOR MOLECULE I.