Figure 3 Mock-up of what a volume browser for three-dimensional cellular imaging data could
look like, using HIV/SIV as an example. The three leftmost images are derived from
a 3DSEM reconstruction and show HIV virion reservoirs in infected macrophages (from
Bennett et al., 2009 ; adapted under the terms of the Creative Commons Public Domain declaration). These
three orthogonal cross-sections and the cube help users to orient themselves in the
data. The central panel shows a slice from a cryo-electron tomographic reconstruction
in which the features of individual SIV virus particles can be identified (from Bennett
et al., 2007 ; adapted under the terms for noncommercial use; https://www.jbc.org/site/misc/Copyright_Permission.xhtml ). Here, biologically meaningful segmentations have been overlaid on the tomogram
and the corresponding annotations are shown in the top right panel. The bottom right
panel shows a three-dimensional rendering of data from EMDB (gold-coloured density
from a sub-tomogram average of a HIV viral spike; EMDB entry 5018; Liu et al., 2008 ) and PDB (the fitted atomic model inside it; structure of a HIV-1 gp120 trimer; PDB
entry 3dno ; Liu et al., 2008 ). |