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Figure 2.
EF-hand motifs of OsRbohB-(138–313) and similar proteins.
A, representation of EF-hand motifs (EF-1, EF-2, EF-like 1, and
EF-like 2). Difference Fourier maps showing contour levels
higher than 5 σ. Ca^2+ ion and water molecules are represented
as a yellow and red spheres, respectively. Amino acid residues
of EF-hand motifs at positions X to Z are shown as sticks. B,
magnified view of EF-hand pairs composed of EF-1 and EF-2, and
EF-like 1 and EF-like 2, respectively. Residues forming the
hydrophobic cores are shown as white sticks. C, hydrophobic
pockets of OsRbohB-(138–313), calcineurin B, and recoverin.
Residues forming the hydrophobic pocket are shown as white
sticks. The pocket of OsRbohB-(138–313) formed by swapped
EF-hands and EF-hand-like motifs is occupied by an N-terminal
helix (blue) protruding from the core domain. The pockets of
calcineurin B and recoverin are occupied by α-helices
protruding from calcineurin A and the C-terminal region (blue),
respectively.
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