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Figure 4.
Figure 4 Stereo diagram of a contact region for the trigonal
form in the wild type (blue) and the EL(L205) mutant (red). In
the wild type, GluL205 interacts with HisH68, which is part of a
loop formed by residues H68-H74 that is close to the same loop
of a symmetry-related protein. This contact interaction is
mediated by water molecules (blue) associated with ThrH72 and
ThrH74. The substitution of Leu for Glu at L205 results in the
association of a molecule, probably an ion (red), near L205 and
H68 and loss of the bridging water molecules.
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