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Figure 1.
Figure 1. Tertiary structure of SBD in Fbs1. (a) Overall
structure of SBD of Fbs1 shown as a ribbon diagram.  -strands
belonging to S1 and S2 are blue and red, respectively. Loops and
helices are black and yellow, respectively. (b) A topology
diagram of SBD. The  -helices
are yellow cylinders labeled 1
and 2.
The -strands
are arrows labeled 1
- 10.
The left and right forms of -strands
correspond to S1 and S2, respectively, as in a. N and C, N and C
termini, respectively. (c) Amino acid sequences of SBD in Fbs1
and corresponding region of Fbs2. Amino acid residues are
numbered in the N-to-C direction, for example, from position 117
to position 297 (C-terminal end) of Fbs1, and from 69 to 295
(C-terminal end) of Fbs2. Identical residues are boxed.
Secondary structure elements are colored as a. Substrate-binding
residues are red characters.
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