6N60:
reference: Structural mechanism of transcription inhibition by lasso peptides microcin J25 and capistruin., Braffman NR, Piscotta FJ, Hauver J, Campbell EA, Link AJ, Darst SA, Proc Natl Acad Sci U S A. 2019 Jan 22;116(4):1273-1278. doi:, 10.1073/pnas.1817352116. Epub 2019 Jan 9. PMID: 30626643

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