>sp|Q31RK3|CCMK3_SYNE7 Carboxysome shell protein CcmK3 OS=Synechococcus elongatus (strain ATCC 33912 / PCC 7942 / FACHB-805) OX=1140 GN=ccmK3 PE=1 SV=1 MPIAVGTIQTLGFPPIIAAADAMVKAARVTITQYGLAESAQFFVSVRGPVSEVETAVEAG LKAVAETEGAELINYIVIPNPQENVETVMPIDFTAESEPFRS