in an earlier report from this laboratory [ spengler , s. , & singer , b . ( 1981 ) nucleic acids res . 9 . 365 ] , transcriptional ambiguities resulting from epsilon c residues in enzymatically synthesized poly ( rc , epsilon rc ) were studied with e. coli dna-dependent rna polymerase in the presence of mn2+ .
C0040649
transcriptional
C0035681
dna-dependent rna polymerase