3326321a_The_Extracellular_Matrix__ECM___GAG
[Localization] cartilage, bone, heart valves [Comments] most abundant GAG; usually associated with protein to form proteoglycans; the chondroitin sulfate proteoglycans form a family of molecules called lecticans and includes aggrecan, versican, brevican, and neurcan; major component of the ECM; loss of chondroitin sulfate from cartilage is a major cause of osteoarthritis [GAG] 
Chondroitin sulfate
H y a l u r o n a t e
C h o n d r o i t i n s u l f a t e
H e p a r a n s u l f a t e
H e p a r i n
D e r m a t a n s u l f a t e
K e r a t a n s u l f a t e
The Extracellular Matrix (ECM)
GAG