Figure 3.
Fig. 3. Stereo figure of the protein environment of the CSS
residue in the structure of Y13C FdI (thick lines) superimposed
by least squares fit onto the structure of native FdI (thin
lines). In this view the loop of the residues Cys8XXCys11X(13)XX
Cys16 folds around the upper half of the [3Fe-4S] cluster while
the^ loop of residues Pro47XCys49Pro50XXXIle^54 folds around the
lower half of the cluster. The short contact between S of CSS13
and an inorganic S of the [3Fe-4S] cluster is indicated. Note
the proximity of Pro50 and Pro87 on either side of residue 13.
The surface of the protein is toward^ the right. Molecule A of
Y13C FdI is shown; molecule B is very similar.
The above figure is reprinted
by permission from the ASBMB:
J Biol Chem
(1997,
272,
15620-15627)
copyright 1997.
of CSS13
and an inorganic S of the [3Fe-4S] cluster is indicated. Note
the proximity of Pro50 and Pro87 on either side of residue 13.
The surface of the protein is toward^ the right. Molecule A of
Y13C FdI is shown; molecule B is very similar.