3 distinct modifications were found.
incubate under gas atmosphere of 1% O2 in N2 (3 bar excess pressure)
incubate under gas atmosphere of 3% H2, 3% O2 in N2 (3 bar excess pressure)
Add 10mM Tris-HCl, pH 7.5, incubate under gas atmosphere of 3% H2, 3% O2 in N2 (3 bar excess pressure)