Structural modeling of beta carboxysome shell proteins. The carboxysome is protein-bound organelle called a bacterial microcompartment and is the site of carbon dioxide fixation in cyanobacteria. From Figure 3 of Sommer et al. J. Exp. Botany 68, 3841–3855 (2017).
Read the associated commentary: N. R. Gough, Desert Green Algae and Cyanobacteria for Synthetic Biology. BioSerendipity (7 November 2017).