>2A18_1|Chains A, B, C|Carbon dioxide concentrating mechanism protein ccmK homolog 4|Synechocystis sp. (1148) MSAQSAVGSIETIGFPGILAAADAMVKAGRITIVGYIRAGSARFTLNIRGDVQEVKTAMAAGIDAINRTEGADVKTWVIIPRPHENVVAVLPIDFSPEVEPFREAAEGLNRRGVPRGLEHHHHHH