2A6H:
reference: Structural basis of transcription inhibition by antibiotic streptolydigin., Temiakov D, Zenkin N, Vassylyeva MN, Perederina A, Tahirov TH, Kashkina E, Savkina M, Zorov S, Nikiforov V, Igarashi N, Matsugaki N, Wakatsuki S, Severinov K, Vassylyev DG, Mol Cell. 2005 Sep 2;19(5):655-66. PMID: 16167380

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