>6CK5_1|Chains A, B|PRPP riboswitch|Thermoanaerobacter mathranii (583357) GUGAAAGUGUACCUAGGGUUCCAGCCUAUUUGUAGGUGUUCGGACCGAGCGGUACAGGUAUAUUUUUAUAUACCACACCUUAGGGACAAAAGCCCGGGAGGAUAGGUUUCACUCGUA