The authors wish to point out that reference 1 is incorrect. The correct reference is given in full below. Feig AL, Lippard SJ: Reactions of non-heme iron(III) centers with dioxygen in biology and chemistry. Chem Rev 1994, 94:759-805.
The authors also wish to state that the entry for DHP1 in Table 3 is incorrect. The correct entry is as follows: Table 3 Backbone parameterization of antiparallel four-helix bundles. Protein name
α angle
β angle
γ angle
X disp
Y disp
Z disp
rmsd
Number of atoms superimposed
DHP1(b)
186.64
–13.55
1.38
4.99
4.37
9.47
1.015
48
(b) The PDB code for DHP1 is 4HBI [50], residues 4–15 and 108–119. Although DHP1 forms a twofold-symmetric homodimer, the fit to a 222symmetrical tetramer is relatively poor, as can be seen from the high rmsd value.