>2I21_1|Chain A|Bacteriorhodopsin|Halobacterium salinarum (2242) QAQITGRPEWIWLALGTALMGLGTLYFLVKGMGVSDPDAKKFYAIVTLVPAIAFTMYLSMLLGYGLTMVPFGGEQNPIYWARYADWLFTTPLLLLDLALLVDADQGTILALVGADGIMIGTGLVGALTKVYSYRFVWWAISTAAMLYILYVLFFGFTSKAESMRPEVASTFKVLRNVTVVLWSAYPVVWLIGSEGAGIVPLNIETLLFMVLDVSAKVGFGLILLRSRAIFGEAEAPEPSAGDGAAATSD