>6T7E_1|Chains A, B, C, D, E, F|Periplasmic divalent cation tolerance protein|Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576) (103690) MKIALTNLPPEHGERIARLLVEEHIVACVNLYPVHSIYSWKGEVCSEAEVTLMMKVSTQGIERLKQRICELHPYELPEFVVIEVDNNASLREYIDFVKGETHLYSAWSHPQFEK