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Figure 2.
Fig. 2. Stereo view of the pseudo-Ca^2+ binding region in the
CALX1.1-CBD2 structure. The structure of CALX1.1-CBD2, shown as
cyan ribbons, is superimposed onto the Ca^2+-bound NCX1-CBD2,
shown as wheat ribbons. The residues in the predicted Ca^2+
binding site are depicted as stick–balls; the N/O atoms are
colored blue/red. Salt bridge and hydrogen bonds in CALX1.1-CBD2
are displayed as yellow broken lines. Two Ca^2+ positions from
the NCX1 structure are drawn as green spheres. The residues from
NCX1 are underlined and italicized.
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