Resolution: 3.2 Descriptor: Structural basis for translation termination on the 70S ribosome. This file contains the 50S subunit of one 70S ribosome. The entire crystal structure contains two 70S ribosomes as described in remark 400. Experimental technique: X-RAY DIFFRACTION Release Date: 10/7/2008 Author: Laurberg, M., Asahara, H., Korostelev, A., Zhu, J., Trakhanov, S., Noller, H.F. Biological source: Thermus thermophilus HB27