RNA, TRNA, TERNARY COMPLEX, CRYO-EM, 70S E.COLI RIBOSOME, CONFORMATIONAL CHANGE SEPARATE FITTING OF THE ANTICODON LOOP REGION OF TRNA (NUCLEOTIDE 26-42) IN THE LOW RESOLUTION CRYO-EM MAP OF AN EF-TU TERNARY COMPLEX (GDP AND KIRROMYCIN) BOUND TO E. COLI 70S RIBOSOME 1LU3