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Figure 1.
Figure 1. A diagram of CSQ polymerization. The CSQ molecule
exists as either a monomer or a wide range of high molecular
mass clusters, depending on the ionic environment. The extended
N terminus of CSQ establishes the front-to-front dimer interface
through arm exchange. Following a further increase of the
concentration of Ca^2+, the carboxy terminus of CSQ, which is
the most negative region, forms tetramer and higher-order linear
polymers capturing substantial amounts of Ca^2+ in the
back-to-back interface.
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