Mutations in and monoclonal antibody binding to evolutionary hypervariable region of Escherichia coli RNA polymerase beta' subunit inhibit transcript cleavage and transcript elongation.

Abstract excerpt

A 190 amino acid-long region centered around position 1050 of the 1407-amino acid-long beta' subunit of Escherichia coli RNA polymerase (RNAP) is absent from homologues in eukaryotes, archaea and many bacteria. In chloroplasts, the corresponding region can be more than 900 amino acids long. The role of this hypervariable region was studied by deletion mutagenesis of the cloned E. coli rpoC, encoding beta'. Long...

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