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Figure 1.
Figure 1 Stereo view (Kraulis, 1991) of the BM-40 FS -EC
structure and its secondary structure elements. The FS domain
(residues 54 -137) is shown in green and consists of an
N-terminal  -hairpin
and a small hydrophobic core of  /
structure.
The EC domain (residues 138 -286) is in red and consists of a
pair of EF-hand calcium-binding sites and helices A, B and C.
The calcium ions bound to the EF-hands are shown as yellow
spheres. The FS and EC domains interact through a small
interface involving mainly 5
and the preceding loop of the FS domain and E
of the EC domain. The FS domain is glycosylated at Asn99; the
first two N-acetylglucosamine (NAG) sugar moieties are included
in the crystallographic model and are shown in atomic detail.
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