1eg0: Difference between revisions
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|PDB= 1eg0 |SIZE=350|CAPTION= <scene name='initialview01'>1eg0</scene>, resolution 11.5Å | |PDB= 1eg0 |SIZE=350|CAPTION= <scene name='initialview01'>1eg0</scene>, resolution 11.5Å | ||
|SITE= | |SITE= | ||
|LIGAND= <scene name='pdbligand=4SU:4-THIOURIDINE-5 | |LIGAND= <scene name='pdbligand=4SU:4-THIOURIDINE-5'-MONOPHOSPHATE'>4SU</scene> | ||
|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
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[[Category: low resolution model]] | [[Category: low resolution model]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 23 11:39:08 2008'' | ||
Revision as of 09:39, 23 March 2008
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| 1eg0, resolution 11.5Å | |||||||||||||
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| Ligands: | 4SU | ||||||||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||||||||
FITTING OF COMPONENTS WITH KNOWN STRUCTURE INTO AN 11.5 A CRYO-EM MAP OF THE E.COLI 70S RIBOSOME
Overview
Over 73,000 projections of the E. coli ribosome bound with formyl-methionyl initiator tRNAf(Met) were used to obtain an 11.5 A cryo-electron microscopy map of the complex. This map allows identification of RNA helices, peripheral proteins, and intersubunit bridges. Comparison of double-stranded RNA regions and positions of proteins identified in both cryo-EM and X-ray maps indicates good overall agreement but points to rearrangements of ribosomal components required for the subunit association. Fitting of known components of the 50S stalk base region into the map defines the architecture of the GTPase-associated center and reveals a major change in the orientation of the alpha-sarcin-ricin loop. Analysis of the bridging connections between the subunits provides insight into the dynamic signaling mechanism between the ribosomal subunits.
About this Structure
1EG0 is a Protein complex structure of sequences from Escherichia coli. Full crystallographic information is available from OCA.
Reference
Solution structure of the E. coli 70S ribosome at 11.5 A resolution., Gabashvili IS, Agrawal RK, Spahn CM, Grassucci RA, Svergun DI, Frank J, Penczek P, Cell. 2000 Mar 3;100(5):537-49. PMID:10721991
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