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Figure 2.
FIG. 2. Stereo view of the ribbon model of the overall
structure of AmyK38. Three domains (A, B, and C) are shown in
red, blue, and green, respectively. Three sodium ions, Na I, Na
II, and Na III, are shown as yellow spheres. The N and C termini
of AmyK38 are in the domains A and C, respectively. Domain A is
the most well conserved (  /  )[8]-barrel domain in
-amylases. Domain C,
which is composed of -strands with the
socalled Greek key motif, is also conserved in amylolytic
enzymes, except in barley -amylase. Na I and Na
II are located at the sites corresponding to the Ca^2^+ ions (Ca
I and Ca III) in the BLA structure. These figures were drawn by
MOLSCRIPT and Raster3D (34, 35).
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