1QFQ:
reference: Antitermination in bacteriophage lambda. The structure of the N36 peptide-boxB RNA complex., Scharpf M, Sticht H, Schweimer K, Boehm M, Hoffmann S, Rosch P, Eur J Biochem 2000 Apr;267(8):2397-408. PMID: 10759866

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