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Figure 5.
Figure 5 Structural comparisons of (a) bucandin with cobratoxin
(1ctx), (b) erabutoxin (3ebx) and (c) bungarotoxin (2abx).
Bucandin is colored orange in each figure. The similarity of
structures is apparent, as well as the significant differences
within the loop regions. The nearly 90° turn of the first loop
of bucandin relative to the rest of the molecule shows a
significant difference compared with other toxins. The presence
of a fourth  -strand
in bucandin is clearly seen on the left of the molecule.
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