The radical SAM protein HemW is a heme chaperone.
Haskamp V, Karrie S, Mingers T, Barthels S, Alberge F, Magalon A, Müller K, Bill E, Lubitz W, Kleeberg K, Schweyen P, Bröring M, Jahn M, Jahn D.
J Biol Chem. 2018 Feb 16;293(7):2558-2572. doi: 10.1074/jbc.RA117.000229. Epub 2017 Dec 27. PMID: 29282292