3I55 RIBOSOME/ANTIBIOTIC, LARGE RIBOSOMAL SUBUNIT, MYCALAMIDE A, RIBONUCLEOPROTEIN, RIBOSOMAL PROTEIN, RNA-BINDING, RRNA-BINDING, TRNA-BINDING, METAL-BINDING, ZINC, ZINC-FINGER, ACETYLATION, RIBOSOME- ANTIBIOTIC COMPLEX CO-CRYSTAL STRUCTURE OF MYCALAMIDE A BOUND TO THE LARGE RIBOSOMAL SUBUNIT