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. 2010 Oct 29;39(Database issue):D392–D401. doi: 10.1093/nar/gkq1021

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© The Author(s) 2010. Published by Oxford University Press.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.5), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 4. — Structure visualization. Left: the asymmetric unit of streptavidin in PDB entry 1STP. The 3D viewers listed below the image will display the asymmetric unit. The arrow toggles between the asymmetric unit and the biological assembly. Middle: the biological assembly of streptavidin based on oligomeric state assigned by the author. The 3D viewers listed below the image will display the biological assembly. Right: a very large biological assembly, the rat liver vault protein, visualized in the Jmol viewer. The structure is the composite of the three PDB entries 2ZUO, 2ZV4 and 2ZV5 with symmetry transformation (−x, y, −z) applied to generate the complete biological assembly. To accommodate the large size, only the Cα positions are used to render the structure.