>tr|A2BVL1|A2BVL1_PROM5 Carboxysome shell protein CsoS1 OS=Prochlorococcus marinus GN=ccmK MATETMGIALGMIETRGLVPAIEAADAMTKAAEVRLIGREFVGGGYVTVLVRGETGAVNA AVRAGADACERVGDGLVAAHIIARPHREVEPALGNGDFLGQKD