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