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Figure 1.
Figure 1. Ribbon Diagrams of ChBP and Related Structures(A)
Overall structure of the ChBP monomer (GlcNAc complex) shown as
a ribbon model (N-terminal domain, blue; linker helices, green;
a-helical barrel domain, yellow; C-terminal domain, red). The
bound GlcNAc molecules (red), P394, and I417 (yellow) are shown
as a ball-and-stick model, and the chloride (green) and calcium
(black) ions are shown as a sphere. Residues between P394 and
I417 are not included in the final model structure.(B) Ribbon
diagram presentation of the ChBP dimer. The subunits are located
around the crystallographic 2-fold axis. One subunit is colored
as in (A), and the other one is colored white.(C) A ribbon
diagram of bGA (1LF9; GH-15). Bacterial and archaeal
glucoamylases comprise an N-terminal b sandwich domain (blue),
linker helices (green), and an a-helical barrel domain (yellow),
whereas fungal glucoamylases comprise only an a-helical barrel
domain. The bound acarbose molecule (red) is shown as a
ball-and-stick model.(D) A ribbon diagram of MalP (1H54; GH-65).
The bound phosphate ion is shown as a ball-and-stick model. The
domain constitution is identical with that of ChBP and each
domain is colored as in (A).
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