REL RCSB RCSB RCSB 2013-06-28 2013-12-04 2013-12-04 2014-01-29 Cryo-EM structure of Poliovirus 135S particles Butan C Filman DJ Hogle JM cell entry, cryo-electron microscopy, poliovirus, single particle analysis Butan C Filman DJ Hogle JM Cryo-Electron Microscopy Reconstruction Shows Poliovirus 135S Particles Poised for Membrane Interaction and RNA Release J.VIROL. 88 1758 1770 2014 24257617 doi:10.1128/JVI.01949-13 3j48 FULLOVERLAP Poliovirus 135S particle Poliovirus 135S particle
Native virus 160S is converted by heat treatment to 135S.
icosahedrally ordered capsid: 60 copies of VP1, VP2, VP3 1 8.6 9 Human poliovirus 1 Mahoney Human poliovirus 1 Mahoney Mahoney Homo sapiens VERTEBRATES Homo sapiens HeLa 8.6 9 308 1 VIRION STRAIN false false Poliovirus type 1 (strain Mahoney) singleParticle particle 0.3 7.4
2 mM CaCl2, 20 mM HEPES
glow-discharged holey carbon-grids (200 mesh C-flat grids)
 ETHANE 90 HOMEMADE PLUNGER
Vitrification carried out in ambient atmosphere. Ethane cooled by liquid nitrogen.
Blotted manually before plunging into liquid ethane FEI TECNAI F20 FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 200 2 0.98 2.0 62000.0 GATAN LIQUID NITROGEN 90 93 90 Objective lens astigmatism was corrected. 2011-02-28 TVIPS TEMCAM-F415 (4k x 4k) 1020 15 Side entry liquid nitrogen-cooled cryo specimen holder 0 0
The particles were selected using an automatic selection program.
Each micrograph
 OTHER 5.5 FSC 0.143 CUT-OFF FREALIGN 117330 emd_5710.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 400 400 400 -200 -200 -200 400 400 400 548.0 548.0 548.0 90.0 90.0 90.0 X Y Z -5.49057913 5.34571552 0.0 0.33240104 1.37 1.37 1.37 1.3 AUTHOR Poliovirus 135S particle
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 1POV 0 1 3 RIGID BODY FIT COOT, REFMAC
Most of the model was docked, with specific areas of discrepancy fitted. The fitting was rigid body with flexible fitting or deletion of selected polypeptide segments. Rigid bodies for VP1, VP2, VP3, and the VP3 beta tube were defined to include beta barrels and non-covalently attached polypeptides. Each rigid body was repeatedly fitted manually and then refined. Disordered polypeptide segments were removed. Several rearranged segments were included as approximate backbone traces and refined.
mean amplitude-weighted cosine of the phase difference RECIPROCAL
emd_5710.tif