The Structural Biology Knowledgebase (SBKB), a collaboration between the Protein Structure Initiative and Nature Publishing Group, wrote an article entitled Molecular Portraits of the Cell to describe how "The cellPACK software generates there-dimensional mesoscale models for a detailed look at biological systems like the cell.  A followup to our Nature Methods article in their Research Advances, February 2015 Technical Highlights issue. SBKB [doi:10.1038/sbkb.2014.245]