6L3A:
reference: Structural insights into CYP107G1 from rapamycin-producing Streptomyces rapamycinicus., Kim V, Lim YR, Lee I, Lee JH, Han S, Pham TV, Kim H, Lee R, Kang LW, Kim D, Arch Biochem Biophys. 2020 Oct 15;692:108544. doi: 10.1016/j.abb.2020.108544., Epub 2020 Aug 18. PMID: 32822639

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