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TitleCryoelectron microscopy structures of the ribosome complex in intermediate states during tRNA translocation.
Journal, issue, pagesProc Natl Acad Sci U S A, Vol. 108, Issue 12, Page 4817-4821, Year 2011
Publish dateMar 22, 2011
AuthorsJie Fu / James B Munro / Scott C Blanchard / Joachim Frank /
PubMed AbstractmRNA-tRNA translocation is a central and highly regulated process during translational elongation. Along with the mRNA, tRNA moves through the ribosome in a stepwise fashion. Using cryoelectron ...mRNA-tRNA translocation is a central and highly regulated process during translational elongation. Along with the mRNA, tRNA moves through the ribosome in a stepwise fashion. Using cryoelectron microscopy on ribosomes with a P-loop mutation, we have identified novel structural intermediates likely to exist transiently during translocation. Our observations suggest a mechanism by which the rate of translocation can be regulated.
External linksProc Natl Acad Sci U S A / PubMed:21383139 / PubMed Central
MethodsEM (single particle)
Resolution13.2 Å
Structure data

EMDB-5262:
Intermediate states observed in the pre-translocation ribosome during tRNA translocation
Method: EM (single particle) / Resolution: 13.2 Å

EMDB-5265:
Intermediate states observed in the pre-translocation ribosome during tRNA translocation
Method: EM (single particle) / Resolution: 13.2 Å

EMDB-5266:
Intermediate states observed in the pre-translocation ribosome during tRNA translocation
Method: EM (single particle) / Resolution: 13.2 Å

EMDB-5267:
Intermediate states observed in the pre-translocation ribosome during tRNA translocation
Method: EM (single particle) / Resolution: 13.2 Å

Source
  • Escherichia coli (E. coli)

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