Structural dynamics of bacterial translation initiation factor IF2 (Articolo in rivista)

Type
Label
  • Structural dynamics of bacterial translation initiation factor IF2 (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1074/jbc.M111.333393 (literal)
Alternative label
  • Wienk H., Tishchenko E., Belardinelli R., Tomaselli S., Dongre R., Spurio R., Folkers G.E., Gualerzi C.O., Boelens R., (2012)
    Structural dynamics of bacterial translation initiation factor IF2
    in Journal of biological chemistry (Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Wienk H., Tishchenko E., Belardinelli R., Tomaselli S., Dongre R., Spurio R., Folkers G.E., Gualerzi C.O., Boelens R., (literal)
Pagina inizio
  • 10922 (literal)
Pagina fine
  • 10932 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 287 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 10 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 14 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Wienk H., Tishchenko E., Tomaselli S., Dongre R., Folkers G.E., Boelens R. : Univ Utrecht, Bijvoet Ctr Biomol Res, NMR Spect, NL-3584 CH Utrecht, Netherlands Belardinelli R., Spurio R.,Gualerzi C.O.: Univ Camerino, Genet Lab, Dept Biosci & Biotechnol, I-62032 Camerino, Macerata, Italy Tomaselli S.: Laboratorio NMR, ISMAC, CNR, via Bassini 15, 20133, Milano, Italy (literal)
Titolo
  • Structural dynamics of bacterial translation initiation factor IF2 (literal)
Abstract
  • Bacterial translation initiation factor IF2 promotes ribosomal subunit association, recruitment, and binding of fMet-tRNA to the ribosomal P-site and initiation dipeptide formation. Here, we present the solution structures of GDP-bound and apo-IF2-G2 of Bacillus stearothermophilus and provide evidence that this isolated domain binds the 50 S ribosomal subunit and hydrolyzes GTP. Differences between the free and GDP-bound structures of IF2-G2 suggest that domain reorganization within the G2-G3-C1 regions underlies the different structural requirements of IF2 during the initiation process. However, these structural signals are unlikely forwarded from IF2-G2 to the C-terminal fMet-tRNA binding domain (IF2-C2) because the connected IF2-C1 and IF2-C2 modules show completely independent mobility, indicating that the bacterial interdomain connector lacks the rigidity that was found in the archaeal IF2 homolog aIF5B. (literal)
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