Resolution: 3.2 Descriptor: Crystal Structure of Ribosome with messenger RNA and the Anticodon stem-loop of P-site tRNA. This file contains the 50s subunit of one 70s ribosome. The entire crystal structure contains two 70s ribosomes and is described in remark 400. Experimental technique: X-RAY DIFFRACTION Release Date: 10/24/2006 Author: Berk, V., Zhang, W., Pai, R.D., Cate, J.H.D. Biological source: ESCHERICHIA COLI