MAQFSESVDVPDMGRRQFMNLLTFGTVTGVALGALYPVVNYFIPPATGGAGGGTTAKDELGNDVSVSKFLESHNVGDRTLVQGLKGDPTYIVVESKEAITDYGINAVCTHLGCVVPWNAAENKFKCPCHGSQYDATGKVVRGPAPKSLALSHAKTENDKIVLTPWTETDFRTGEEPWWS 179 UCRIA_ANAVT petC Cytochrome b6-f complex iron-sulfur subunit 1 Rieske iron-sulfur protein Plastohydroquinone:plastocyanin oxidoreductase iron-sulfur protein Ava_0385 Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions (By similarity).