REL RCSB RCSB RCSB 2011-07-11 2012-05-31 2012-05-31 2012-05-31 Molecular structure of soluble trimeric HIV-1 glycoprotein gp140 KNH1144 Harris A Borgnia MJ Shi D Bartesaghi A He H Pejchal R Kang YK Depetris R Marozsan AJ Sanders RW Klasse PJ Milne JL Wilson IA Olson WC Moore JP Subramaniam S HIV/AIDS vaccine, immunogen, HIV glycoprotein structure, gp140 trimer, cryo-electron tomography, sub-tomogram averaging, cryo-electron microscopy Harris A Borgnia MJ Shi D Bartesaghi A He H Pejchal R Kang YK Depetris R Marozsan AJ Sanders RW Klasse PJ Milne JL Wilson IA Olson WC Moore JP Subramaniam S Trimeric HIV-1 glycoprotein gp140 immunogens and native HIV-1 envelope glycoproteins display the same closed and open quaternary molecular architectures. PROC.NAT.ACAD.SCI.USA 108 11440 11445 2011 21709254 doi:10.1073/pnas.1101414108 SOSIP gp140 KNH1144 SOSIP gp140 KNH1144 trimeric 2 SOSIP gp140 KNH1144 Human immunodeficiency virus 1 true subtomogramAveraging particle ETHANE OTHER FEI POLARA 300 FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 200 GATAN LIQUID NITROGEN Eucentric 20.0 FSC 0.5 CUT-OFF emd_5320.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 100 100 100 0 0 0 100 100 100 410.0 410.0 410.0 90.0 90.0 90.0 X Y Z -7.88708782 10.87692833 -0.01478521 0.60892195 4.1 4.1 4.1 1.5 AUTHOR For unliganded gp140 maps, z-pixels were scaled to compensate for elongation arising from preferential orientation of trimers with the 3-fold axis predominantly along the direction of the incident beam. The scaling factor was derived from single particle 3D reconstruction based on projection images of each particle from different tilts, which produces a noisier envelope that provides a measure of the shape of the molecule in the absence of distortions generated by the presence of the missing wedge.
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