>4frn_B mol:na length:102 Cobalamin riboswitch aptamer domainGGGCUAAAAGCAUGGUGGGAAAGUGACGUGUAAUUCGUCCACAUUACUUGAUACGGUUAUACUCCGAAUGCCACCUAGCCCAAAGUAGAGCAAGGAGACUCA