>6Q53_1|Chains A, C[auth D]|light-harvesting protein subunit alpha|Ectothiorhodospira haloalkaliphila (421628) MSEYRPSRPSNPRDDWKLWLVVNPGTWLIPLLITFLATALIVHSFVFTHEAYNPLTYEVSE >6Q53_2|Chains B, D[auth E]|Light-harvesting protein B:800-850 subunit beta|Halorhodospira halochloris str. A (1354791) MENSISGLTEEQAKEFHEQFKVVFTTFVVLAAAAHFLVFLWRPWF