1ge9: Difference between revisions
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ge9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ge9 OCA], [http://www.ebi.ac.uk/pdbsum/1ge9 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1ge9 RCSB]</span> | |||
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 20:42:16 2008'' | ||
Revision as of 20:42, 30 March 2008
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
SOLUTION STRUCTURE OF THE RIBOSOME RECYCLING FACTOR
OverviewOverview
The solution structure of ribosome recycling factor (RRF) from hyperthermophilic bacterium, Aquifex aeolicus, was determined by heteronuclear multidimensional NMR spectroscopy. Fifteen structures were calculated using restraints derived from NOE, J-coupling, and T1/T2 anisotropies. The resulting structure has an overall L-shaped conformation with two domains and is similar to that of a tRNA molecule. The domain I (corresponding to the anticodon stem of tRNA) is a rigid three alpha-helix bundle. Being slightly different from usual coiled-coil arrangements, each helix of domain I is not twisted but straight and parallel to the main axis. The domain II (corresponding to the portion with the CCA end of tRNA) is an alpha/beta domain with an alpha-helix and two beta-sheets, that has some flexible regions. The backbone atomic root-mean-square deviation (rmsd) values of both domains were 0.7 A when calculated separately, which is smaller than that of the molecule as a whole (1.4 A). Measurement of 15N-[1H] NOE values show that the residues in the corner of the L-shaped molecule are undergoing fast internal motion. These results indicate that the joint region between two domains contributes to the fluctuation in the orientation of two domains. Thus, it was shown that RRF remains the tRNA mimicry in solution where it functions.
About this StructureAbout this Structure
1GE9 is a Single protein structure of sequence from Aquifex aeolicus. Full crystallographic information is available from OCA.
ReferenceReference
Solution structure of the ribosome recycling factor from Aquifex aeolicus., Yoshida T, Uchiyama S, Nakano H, Kashimori H, Kijima H, Ohshima T, Saihara Y, Ishino T, Shimahara H, Yoshida T, Yokose K, Ohkubo T, Kaji A, Kobayashi Y, Biochemistry. 2001 Feb 27;40(8):2387-96. PMID:11327859
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