2018-06-13 REL RCSB RCSB RCSB 2017-05-26 2017-06-14 2017-07-05 2018-06-13 Cryo-EM reconstruction of the HO microcompartment shell Sutter M Greber BJ Aussignargues C Kerfeld CA Sutter M Greber B Aussignargues C Kerfeld CA Assembly principles and structure of a 6.5-MDa bacterial microcompartment shell. Science US 356 1293 1297 2017 28642439 doi:10.1126/science.aan3289 1095-9203 0038 SCIEAS EMD-8747 associated EM volume BMC (bacterial microcompartment) shell BMC (bacterial microcompartment) shell 0 Haliangium ochraceum Escherichia coli BL21 (DE3) 6.5 singleParticle particle 3 7.4 20.0 Tris-HCl 50.0 NaCl Sodium chloride 0.01 NP-40 substitute Protochips CF-1.2/1.3 COPPER 400 CARBON HOLEY CARBON CONTINUOUS PLASMA CLEANING ETHANE 100 277 FEI VITROBOT MARK IV
Incubation on grid for 5-7 sec before plunging.
FEI TECNAI F20 FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 120 100.0 2.2 1.5 3.0 100000. 107142. GATAN 626 SINGLE TILT LIQUID NITROGEN CRYO TRANSFER HOLDER NITROGEN GATAN ULTRASCAN 4000 (4k x 4k) 4096 4096 15.0 1 90 0.4 25.0
Semi-automated collection using LEGINON
 1 3750 CTFFIND 4
CTF correction was performed inside RELION 1.4
 EMD-3351
EMD-3351 was scaled to match the size of the BMC shell and low-pass filtered to avoid model bias.
 2 I 8.7 FSC 0.143 CUT-OFF RELION 1.4
Icosahedral symmetry was imposed.
2600 OTHER RELION 1.4
Initial angle assignment during RELION 3D auto-refinement (maximum likelihood) based on initial reference. Icosahedral symmetry was imposed.
 OTHER RELION 1.4
RELION 3D auto-refinement (maximum likelihood, gold standard). Icosahedral symmetry was imposed.
 4 RELION 1.4
3450 particle images were classified into 4 classes in RELION 1.4. Two classes (approx. 2600 particles) were included in the final refinement. Icosahedral symmetry was imposed during classification.
 emd_8747.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 192 192 192 0 0 0 192 192 192 537.6 537.6 537.6 90.0 90.0 90.0 X Y Z -0.14585659 0.3632062 0.008368597 0.035658162 2.8 2.8 2.8 0.1 AUTHOR Cryo-EM reconstruction of the HO microcompartment shell 5V75
truncated to poly-Ala
 5DJB
truncated to poly-Ala
 4JW0
truncated to poly-Ala
 RIGID BODY FIT
Existing high-resolution structures, truncated to poly-alanines, were docked into the map to create a model for molecular replacement phasing of BMC shell X-ray diffraction data.
REAL