1.S.5.1.1
CcmL shell protein of cyanobacterial carboxysomes, The protein is of 99 aas with two very moderately hydrophobic regions, the larger N-terminal region, and the shorter C-terminal region.  It probably forms vertices in the carboxysome, a polyhedral inclusion where RuBisCO (ribulose bisphosphate carboxylase, rbcL-rbcS) is sequestered. It has been modeled to induce curvature upon insertion into an otherwise flat hexagonal molecular layer of CcmK subunits (Cameron et al. 2013).