REL PDBe PDBe PDBe 2010-04-30 2010-06-16 2011-05-06 2014-01-29 Fischer N Konevega AL Wintermeyer W Rodnina MV Stark H Ribosome, translation, translocation, tRNA Fischer N Konevega AL Wintermeyer W Rodnina MV Stark H NATURE 466 329 333 2010 20631791 doi:10.1038/nature09206 4v72 FULLOVERLAP Substate of E. coli 70S-fMetVal-tRNAVal-tRNAfMet complex in hybrid pre-translocation state (pre4) Substate of E. coli 70S-fMetVal-tRNAVal-tRNAfMet complex in hybrid pre-translocation state (pre4) 4 2.5 Ribosome false Escherichia coli 2.5 ribosome-prokaryote: ALL fMetVal-tRNAVal Escherichia coli 0.025 TRANSFER DOUBLE HELIX false tRNAfMet Escherichia coli 0.025 TRANSFER DOUBLE HELIX false m022 mRNA synthetic construct

Coding sequence AUGGUU

OTHER SINGLE STRANDED true singleParticle particle 7.5

50 mM Tris-HCl, 70 mM NH4Cl, 30 mM KCl, 7 mM MgCl2, 0.6 mM spermine, 0.4 mM spermidine

ETHANE 75 77 HOMEMADE PLUNGER

Vitrification instrument: Custom-built CEVS. Dew-point temperature (temperature on the grid) adjusted to 18 degrees C

Samples were vitrified at different time points along the reaction coordinate (1, 2, 5 and 20 minutes after addition of deacylated tRNAfMet to 70S-fMetVal-tRNAVal complexes) Manual blotting for about 2 seconds FEI/PHILIPS CM200FEG SPOT SCAN BRIGHT FIELD FIELD EMISSION GUN 160 2.0 0.5 2.0 161000.0 162740.0 GATAN LIQUID NITROGEN 77 Objective lens astigmatism was corrected at 200,000 times magnification GENERIC TVIPS (4k x 4k) 20 Eucentric

Local

C1 OTHER 13.0 FSC 0.5 CUT-OFF IMAGIC, custom, Spider

Final maps were calculated from 13 datasets acquired at different time points, computationally sorted into distinct substates

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