>2YIF_1|Chain A[auth X]|FMN RIBOSWITCH|FUSOBACTERIUM NUCLEATUM SUBSP. NUCLEATUM (190304) GGAUCUUCGGGGCAGGGUGAAAUUCCCGACCGGUGGUAUAGUCCACGAAUCCAU >2YIF_2|Chain B[auth Z]|FMN RIBOSWITCH|FUSOBACTERIUM NUCLEATUM SUBSP. NUCLEATUM (190304) GGAUUGAUUUGGUGAAAUUCCAAAACCGACAGUAGAGUCUGGAUGAGAGAAGAUUCG