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Figure 1.
Figure 1 Electron density for residues at the N-terminus of
anionic salmon trypsin in complex with the squash-seed inhibitor
CPTI-II. The maps are from simulated annealing where residues 24
and 28 were refined as alanines. The 2F[o] - F[c] map (grey) is
contoured at 1.5  and
the F[o] - F[c] map (black) is contoured at 3 .
Both maps clearly identify residues 24 and 28 as prolines. The
coordinates of the final refined model are superimposed on the
simulated-annealing maps. The figure was produced using
BOBSCRIPT (Kraulis, 1991[Kraulis, P. J. (1991). J. Appl. Cryst.
24, 946-950.]; Esnouf, 1997[Esnouf, R. M. (1997). J. Mol. Graph.
15, 133-138.]).
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