REL PDBe PDBe PDBe 2015-02-19 2015-03-11 2015-05-13 2015-05-20 Behrmann E Loerke J Budkevich TV Yamamoto K Schmidt A Penczek PA Vos MR Burger J Mielke T Scheerer P Spahn CMT mammalian ribosome, translation, polysome, cryo electron microscopy, elongation cycle Behrmann E Loerke J Budkevich TV Yamamoto K Schmidt A Penczek PA Vos MR Burger J Mielke T Scheerer P Spahn CMT CELL(CAMBRIDGE,MASS.) 161 845 857 2015 25957688 doi:10.1016/j.cell.2015.03.052 Native ribosomal complex from polysomes - rotated-1 PRE state Native ribosomal complex from polysomes - rotated-1 PRE state

The sample was monodisperse

1 4.5 4.5 80S ribosomal complex

The sample was isolated as polysomes from the cell. Structural analysis shows that the complex contains 2 tRNAs and mRNA.

false Homo sapiens Human HEK 293T Cytoplasm 4.5 4.5 ribosome-eukaryote: ALL singleParticle particle 3.5 7.5

20 mM Hepes-KOH, pH 7.5, 100 mM KCl, 1.5 mM MgCl2, 0.5 mM spermidine, 0.04 mM spermine, 1 mM DTT

Quantifoil grids with additional continuous carbon support

ETHANE 100 93 FEI VITROBOT MARK II blot for 2-4 seconds before plunging FEI POLARA 300 FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 2.0 2.0 4.5 115000.0 205000.0 GATAN LIQUID NITROGEN

Data was collected automatically with Leginon

2012-08-20 TVIPS TEMCAM-F416 (4k x 4k) 51282 20 FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 2.7 1.5 4.5 96000.0 172000.0 FEI TITAN KRIOS AUTOGRID HOLDER 2012-11-29 FEI FALCON II (4k x 4k) 51282 20

Each micrograph

C1 OTHER 7.3 OTHER Signature, CTFFind3, Spider, SPARX

Maps were calculated from 2 datasets using SSNR-weighted combination.

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