>sp|Q31RK3|CCMK3_SYNE7 Carboxysome shell protein CcmK3 OS=Synechococcus elongatus GN=ccmK3 MPIAVGTIQTLGFPPIIAAADAMVKAARVTITQYGLAESAQFFVSVRGPVSEVETAVEAG LKAVAETEGAELINYIVIPNPQENVETVMPIDFTAESEPFRS