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Schematic
representation of a
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single
proteoglycan consisting
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of a
core protein molecule to
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which
a large number of
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glycosaminoglycan
chains
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(GAGS,
shown in red) are
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attached.
A proteoglycan from
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cartilage
matrix actually
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contains
about 30 keratan
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sulfate
and 100 chondroitin
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sulfate chains
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