from Fisher Scientific. Imidazole was purchased from J. T. Baker Chemical
Co. Potassium chloride and glycerol were purchased from EMD Chemicals.
β-Mercaptoethanol (BME), sodium dithionite, sodium sulfide,
5′-deoxyadenosine (5′-dAH), and S-adenosylhomocysteine
(SAH) were purchased from MilliporeSigma. Kanamycin, ampicillin, dithiothreitol
(DTT), arabinose, isopropyl β-
(IPTG) and tris(2-carboxyethyl)phosphine hydrochloride (TCEP) were
purchased from Gold Biotechnology. Ni-nitrilotriacetic acid (NTA)
resin was acquired from Qiagen. SAM was synthesized and purified as
described previously.45 (link) DNA isolation kits
were purchased from Macherey-Nagel (Dueren, Germany). All other chemicals
and materials were of the highest grade available and were from MilliporeSigma.