2awb
From Proteopedia
| |||||||
| , resolution 3.46Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | |||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal structure of the bacterial ribosome from Escherichia coli at 3.5 A resolution. This file contains the 50S subunit of the second 70S ribosome. The entire crystal structure contains two 70S ribosomes and is described in remark 400.
Overview
We describe two structures of the intact bacterial ribosome from Escherichia coli determined to a resolution of 3.5 angstroms by x-ray crystallography. These structures provide a detailed view of the interface between the small and large ribosomal subunits and the conformation of the peptidyl transferase center in the context of the intact ribosome. Differences between the two ribosomes reveal a high degree of flexibility between the head and the rest of the small subunit. Swiveling of the head of the small subunit observed in the present structures, coupled to the ratchet-like motion of the two subunits observed previously, suggests a mechanism for the final movements of messenger RNA (mRNA) and transfer RNAs (tRNAs) during translocation.
About this Structure
2AWB is a Protein complex structure of sequences from Escherichia coli. Full crystallographic information is available from OCA.
Reference
Structures of the bacterial ribosome at 3.5 A resolution., Schuwirth BS, Borovinskaya MA, Hau CW, Zhang W, Vila-Sanjurjo A, Holton JM, Cate JH, Science. 2005 Nov 4;310(5749):827-34. PMID:16272117
Page seeded by OCA on Thu Mar 20 15:54:34 2008
