1vsa: Difference between revisions
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==Overview== | ==Overview== | ||
Our understanding of the mechanism of protein synthesis has undergone | Our understanding of the mechanism of protein synthesis has undergone rapid progress in recent years as a result of low-resolution X-ray and cryo-EM structures of ribosome functional complexes and high-resolution structures of ribosomal subunits and vacant ribosomes. Here, we present the crystal structure of the Thermus thermophilus 70S ribosome containing a model mRNA and two tRNAs at 3.7 A resolution. Many structural details of the interactions between the ribosome, tRNA, and mRNA in the P and E sites and the ways in which tRNA structure is distorted by its interactions with the ribosome are seen. Differences between the conformations of vacant and tRNA-bound 70S ribosomes suggest an induced fit of the ribosome structure in response to tRNA binding, including significant changes in the peptidyl-transferase catalytic site. | ||
==About this Structure== | ==About this Structure== | ||
1VSA is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. This structure | 1VSA is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. This structure supersedes the now removed PDB entry 1VS9. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1VSA OCA]. | ||
==Reference== | ==Reference== | ||
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[[Category: Korostelev, A.]] | [[Category: Korostelev, A.]] | ||
[[Category: Laurberg, M.]] | [[Category: Laurberg, M.]] | ||
[[Category: Noller, H | [[Category: Noller, H F.]] | ||
[[Category: Trakhanov, S.]] | [[Category: Trakhanov, S.]] | ||
[[Category: crystal structure]] | [[Category: crystal structure]] | ||
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[[Category: trna]] | [[Category: trna]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 15:38:08 2008'' | ||