Figure 4.
Figure 4: Oxygen-evolving centre. a, Electron density of the
Mn[4]Ca cluster, viewed similarly to Fig. 3a. Surrounding amino
acids of D1 (yellow) and CP43 (magenta) are indicated; Mn is red
and Ca^2+ is orange. The 2F[o] - F[c] map is contoured at the
1.2 level.
b, Schematic view of the Mn[4]Ca cluster. Distances between Mn
(red) and Ca^2+ (orange) are indicated by the connecting lines
(grey, 2.7 Å; blue, 3.3 Å, green, 3.4 Å). Amino acids of the
first coordination sphere are black; those of the second sphere
are grey; distances are given in angstroms. c, Superposition of
the current Mn[4]Ca structure (coloured as in a) with that of
ref. 5 (D1 in green, CP43 in orange, Mn in violet and Ca^2+ in
yellow, respectively).
The above figure is reprinted
by permission from Macmillan Publishers Ltd:
Nature
(2005,
438,
1040-1044)
copyright 2005.
level.
b, Schematic view of the Mn[4]Ca cluster. Distances between Mn
(red) and Ca^2+ (orange) are indicated by the connecting lines
(grey, 2.7 Å; blue, 3.3 Å, green, 3.4 Å). Amino acids of the
first coordination sphere are black; those of the second sphere
are grey; distances are given in angstroms. c, Superposition of
the current Mn[4]Ca structure (coloured as in a) with that of
ref. 5 (D1 in green, CP43 in orange, Mn in violet and Ca^2+ in
yellow, respectively).