>sp|Q93SW8|UCRIB_NOSS1 Cytochrome b6-f complex iron-sulfur subunit 2 OS=Nostoc sp. GN=petC2 MDDTLNQANPSMSRRQLLNFFTGAIVATTASAAIYPATKFFMPPAESTDAEGGILAQDKI GHPIPASQILAQASGTRALIAGLAGEPTYLTVREDGTLDPMGIVNNCTHLGCTFPWNPVD QQFQCPCHGSRYDAQGSVERGPANRPLKLVQVQVKDDYIWISPWQETDPRTGEKPWWV