>sp|Q3AWL7|UCRI_SYNS9 Cytochrome b6-f complex iron-sulfur subunit OS=Synechococcus sp. GN=petC MTQIPSSDVPGMGRRQFMNLLTFGSVTGVALGALYPVARYFIPPKAAGSGGGTTAKDELG NVVTATGWLSTHPEGDRSLVQGLKGDPTYLIVEGADAIGSYGINAICTHLGCVVPWNSGA NKFMCPCHGSQYDATGKVVRGPAPLSLALANVSVEDDNVFVSEWSETDFRTGDKPWWA