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Figure 1.
Crystal structure of SPARC FS-EC ΔαC bound to a 33-residue
collagen peptide (stereoview). The FS and EC domains of SPARC
are in green and cyan, respectively. Disulphide bridges are in
pale pink, the glycan attached to N99 is in gray, and a calcium
ion is shown as a purple sphere. The collagen peptide is shown
as a Cα ribbon (leading chain, yellow; middle chain, orange;
trailing chain, red). The chain termini, selected helices and
the location of the αC deletion are labeled.
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