2020-01-29 REL RCSB RCSB RCSB 2017-06-30 2018-10-10 2018-10-10 2020-01-29 National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) R01GM085043 United States Himes BA Zhang P Himes BA Zhang P eLife US 2018 2050-084X EMD-3228 other EM volume

Map from the same data by the original authors using pyTOM for image processing

EMD-8799 associated EM volume

Yeast 80S ribosome derived from EMPIAR-10045 using emClarity

S. cerevisiae 80S ribosome S. cerevisiae 80S ribosome 0

Non-translating yeast 80s ribosome

Saccharomyces cerevisiae Escherichia coli subtomogramAveraging particle 7.5 Quantifoil R2/2 COPPER/RHODIUM 200 CARBON CONTINUOUS ETHANE 100 FEI VITROBOT MARK III

FEI TITAN KRIOS SPOT SCAN BRIGHT FIELD FIELD EMISSION GUN 300 2.7 3.0 5.0 53000.0 FEI TITAN KRIOS AUTOGRID HOLDER Gatan Quantum Energy Filter GATAN K2 SUMMIT (4k x 4k) INTEGRATING 3838 3710 2.0 1 1 C1 BACK PROJECTION 7.8 FSC 0.143 CUT-OFF emClarity 1.0 anisotropic "single-particle wiener filter" for final weighting/reconstruction

Independent beyond 3.2 nm as determined by the FSC at the time of dividing the half-sets

3120 4 3120 EMD-3228 template matching in emClarity

Template matching using EMD-3228 as an initial reference low-pass filtered to 4.0nm.

emClarity 1.0 included astigmatism and per tilt ctf estimation

Phases were corrected on the projections by multiplication of the astigmatic-CTF determined in emClarity in tiles of 320 sq pix with a strip replacement that depended on the tilt angle.

OTHER emClarity 1.0

3D refinement with two half-sets fully separated after template matching, at which point the FSC 0.5 was 3.2 nanometers. Reference and subtomograms filtered dynamically according to the FSC at each cycle using the FOM approach.

emd_8799_msk_1.map emd_8799_msk_2.map