These researchers have discovered that a radical S-adenosylmethionine oxygenase operates in aerobic cells, and not only in anaerobic environments. This process was observed in “a ribosomally synthesized, post-translationally modified peptide (RiPP),” darobactin A.

See the full list of authors and read their paper, “Characterization of a Radical SAM Oxygenase for the Ether Crosslinking in Darobactin Biosynthesis,” at ACS Publications.