REL RCSB RCSB RCSB 2014-11-04 2014-12-24 2015-01-07 2015-01-21 Electron cryo-microscopy of Tif6p bound to peptidyl-tRNA-60S ribosomes Shen PS Park J Qin Y Li X Parsawar K Larson M Cox J Cheng Y Lambowitz AM Weissman JS Brandman O Frost A ribosome quality control complex, RQC, eukaryotic ribosome rescue, stalled nascent chain Shen PS Park J Qin Y Li X Parsawar K Larson MH Cox J Cheng Y Lambowitz AM Weissman JS Brandman O Frost A Rqc2p and 60S ribosomal subunits mediate mRNA-independent elongation of nascent chains SCIENCE 347 75 78 2015 25554787 doi:10.1126/science.1259724 RQC particles purified by co-IP of Rqc1-FLAG, eluted with 3xFLAG peptide RQC particles purified by co-IP of Rqc1-FLAG, eluted with 3xFLAG peptide
RQC particles were 3D classified to reveal distinct subclasses containing various RQC components.
1 60S ribosome false Saccharomyces cerevisiae BY4741 yeast ribosome-eukaryote: LSU 60S, LSU RNA 28S, LSU RNA 5.8S, LSU RNA 5S singleParticle particle 7.4
100 mM KOAc, 10 mM MgCl2, 25 mM HEPES-KOH
200 mesh Quantifoil R2/2 grid + lacey carbon grid with ultrathin carbon
 ETHANE 75 90 FEI VITROBOT MARK III Blot for 3 seconds before plunging FEI POLARA 300 FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 2.0 0.8 2.0 31000.0 GATAN LIQUID NITROGEN 80 90 85 Gatan
UCSF Image4 on-the-fly motion correction
2013-07-22 GATAN K2 (4k x 4k) 3459 35 8. LN2 cooled
Particles were selected using the semi-automated swarm tool in e2boxer.py of the EMAN2 package. All 2D and 3D processing was performed in RELION.
each particle
 5.4 OTHER RELION, CTFFIND3
Micrographs were motion-corrected via the UCSFImage4 package.
41054 emd_6172.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 420 420 420 0 0 0 420 420 420 512.4 512.4 512.4 90.0 90.0 90.0 X Y Z -0.01467612 0.04528844 0.00010717 0.0019634 1.22 1.22 1.22 0.004 AUTHOR structure of Tif6p bound to peptidyl-tRNA-60S particles
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 4A18 RIGID BODY FIT Chimera REAL