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Figure 5.
FIG. 5. Interaction between domains. Buried water molecules
are represented by stars, and hydrogen bonds are represented by
broken lines. A, interactions at the hybrid domain (yellow) and
the PSI domain (green) interface: the invariant Arg86 residue is
located centrally making several polar contacts indicated by
broken lines. B, interactions at the PSI domain (green) and the
I-EGF1 domain (red) interface: residues taking part in the
interaction are labeled. Also labeled is the Ile^455 in the
I-EGF1 domain that may play an important role in the interaction
with the I-EGF2 domain.
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