3ABA:
reference: Regio- and stereospecificity of filipin hydroxylation sites revealed by crystal structures of cytochrome P450 105P1 and 105D6 from Streptomyces avermitilis., Xu LH, Fushinobu S, Takamatsu S, Wakagi T, Ikeda H, Shoun H, J Biol Chem. 2010 May 28;285(22):16844-53. Epub 2010 Apr 7. PMID: 20375018

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