4YG2: X-Ray Crystal Structur Of Escherichia Coli Rna Polymerase Si Holoenzyme
reference: X-ray crystal structure of Escherichia coli RNA polymerase sigma70 holoenzyme., Murakami KS, J Biol Chem. 2013 Mar 29;288(13):9126-34. doi: 10.1074/jbc.M112.430900. Epub 2013, Feb 6. PMID: 23389035

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