. 2003 Jul;85(1):549–558. doi: 10.1016/S0006-3495(03)74499-3

TABLE 3.

Mb(II)H₂O at T > 240 K

Experiment	Fe–N_p	Fe–N_his	Fe–O	Fe-heme displacement	Tilt
XRD^* 1.1 Å	2.07	2.14	3.53	0.39	30
XRD^† 1.1 A	2.06	2.15	3.73	0.27	30
XANES crystal	2.08(2)//heme	2.09(3)//axis	3.67(16)//axis	0.51(20)//heme	34(37)//axis

Comparison between different structural determinations of the Fe-heme site geometry. Distance units, Ångstrom. The resolution of XRD experiments is indicated. The values in parenthesis are the statistical errors as evaluated by the fitting procedure.

Deoxy-Mb. PDB code, 1A6N.

^†

Deoxy-Mb. PDB code, 1BZP.