Figure 8. The omit maps (F[o] -F[c], contoured at 3.5s) of
unusual residues of Chlamydomonas rubisco. Each map is
calculated without a contribution of the coordinates of the
unusual residue. In the stick model, C, N, O, and S atoms are
colored in yellow, blue, red, and green, respectively. The stick
models fitted in the electron-density maps are (a)
Na-methyl-MetS-1, (b) 4-hydroxy-ProL-104, (c)
4-hydroxy-ProL-151, (d) Sg-methyl-CysL-256, (e)
Sg-methyl-CysL-369, and (f) ThrL-471. The electron-density map
in (f) is probably that of Og-methyl-Thr or Ile, as described in
the text. The white arrows show the additional electron
densities resulting from modifications or amino acid conversion.
The Figure was prepared using the program TURBO-FRODO.
The above figure is reprinted
by permission from Elsevier:
J Mol Biol