Resolution: 8.7 Descriptor: Crystal Structure of a Streptomycin Dependent Ribosome from Escherichia Coli, 50S Subunit of 70S Ribosome. THIS FILE, 1PNU, CONTAINS ONLY MOLECULES OF THE 50S RIBOSOMAL SUBUNIT. THE 30S SUBUNIT, MRNA, P-SITE TRNA, AND A-SITE TRNA ARE IN THE PDB FILE 1PNS. Experimental technique: X-RAY DIFFRACTION Release Date: 7/15/2003 Author: Vila-Sanjurjo, A., Ridgeway, W.K., Seymaner, V., Zhang, W., Santoso, S., Yu, K., Cate, J.H.D. Biological source: Escherichia coli