REL PDBe PDBe PDBe 2008-10-09 2008-10-14 2009-04-01 2014-04-16 Zhang P Mueller S Morais MC Bator-Kelly CM Bowman VD Hafenstein S Wimmer E Rossmann MG Poliovirus type1, poliovirus receptor Zhang P Mueller S Morais MC Bator CM Bowman VD Hafenstein S Wimmer E Rossmann MG PROC.NAT.ACAD.SCI.USA 105 18284 18289 2008 19011098 doi:10.1073/pnas.0807848105 3epc FULLOVERLAP CD155-PV1 complex CD155-PV1 complex 60 copies of CD166 bind to icosahedral protein shell of a PV1 particle 2 11.1 Human poliovirus 1 Human poliovirus 1 Homo sapiens VERTEBRATES 8.5 310 VIRION SEROTYPE false false poliovirus type 1 singleParticle particle 2 7.5

10mM Tris-HCl, 20mM NaCl

NEGATIVE

A small vial of ethane is placed inside a larger liquid nitrogen reservoir. The grid holding a few microliters of the sample is held in place at the bottom of a plunger by the means of fine tweezers. Once the ethane in the vial is completely frozen, it needs to be slightly melted. When the liquid ethane is ready, a piece of filter paper is then pressed against the sample to blot of excess buffer, sufficient to leave a thin layer on the grid. After a predetermined time, the filter paper is removed, and the plunger is allowed to drop into the liquid ethane. Once the grid enters the liquid ethane, the sample is rapidly frozen, and the grid is transferred under liquid nitrogen to a storage box immersed liquid nitrogen for later use in the microscope.

ETHANE OTHER FEI/PHILIPS CM300FEG/T FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 0.857 2.126 47000.0 47190.0 GATAN LIQUID NITROGEN live FFT at 200K KODAK SO-163 FILM 47 Eucentric I 8.0 FSC 0.5 CUT-OFF

Final map includes data to 8.0 Ang resolution (fsc 0.5 cut-off), magnification of final map standardized to a map calculated from PV1 atomic coordinates (PDB accession no 2PLV) resulting in final pixel separation of 2.65 Ang