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Interactions of βD516 and βP564 residues with rifampicin at the drug-binding pocket of RNAP. The interacting residues (green) and Rif molecule are shown in space-fill rendition and marked. The polypeptide segment of the β subunit (residues 513–566) involved in the formation of Rif binding pocket is shown in solid ribbon rendition. Position of βT563 residue is indicated.
