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Figure 4.
Details from the molecular interaction of the complex. (A)
Hydrophobic interactions stabilizing the ^8–9FnI
(gold)–peptide (blue) conformation involve W[553] stacking
above the peptide (blue) plane and L[785] of α[1](I) contacting
H[539] and F[569]. (B) Stereoview of the β-stranded portion of
the collagen peptide. Two salt bridges to ^8–9FnI are formed
at its C terminus (green dashed lines) as well as important
hydrogen bonds among the residues shown. (C) Stereoview of the
peptide N terminus interacting with ^9FnI, primarily through
hydrogen bonds (red dashed lines).
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