4v4q

Crystal structure of the bacterial ribosome from Escherichia coli at 3.5 A resolution.Crystal structure of the bacterial ribosome from Escherichia coli at 3.5 A resolution.

4v4q, resolution 3.46Å Show:Asymmetric Unit Biological Assembly Structural highlights 4v4q is a 20 chain structure with sequence from Escherichia coli. This structure supersedes the now removed PDB entries 2avy, 2aw4, 2aw7 and 2awb. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 3.46Å Ligands: Experimental data: Check Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function RS11_ECOLI Located on the platform of the 30S subunit, it bridges several disparate RNA helices of the 16S rRNA. Forms part of the Shine-Dalgarno cleft in the 70S ribosome (By similarity).[HAMAP-Rule:MF_01310] Publication Abstract from PubMed 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. 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 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Ribosome 3D structures