RIBOSOME, ZINC-FINGER, RNA-BINDING, TRANSLATION, RRNA-BINDING, PROTEIN BIOSYNTHESIS, ELONGATION FACTOR, RIBOSOMAL PROTEIN, TRNA-BINDING, TRANSLOCATION, METAL-BINDING, NUCLEOTIDE-BINDING, ELONGATION FACTOR G, RIBONUCLEOPROTEIN, PROTEIN SYNTHESIS THE STRUCTURE OF THE RIBOSOME WITH ELONGATION FACTOR G TRAPPED IN THE POST-TRANSLOCATIONAL STATE (PART 1 OF 4). 2WRI