Table 1

The most-studied components of cartilage matrix

Collagens
     Types IIa and IIb
     Type III
     Type VI
     Type IX
     Type X
     Type XI
     Type XII
     Type XIV
Proteoglycans
     Aggrecan
     Versican
     Link protein
     Biglycan (DS-PGI)
     Decorin (DS-PGII)
     Epiphycan (DS-PGIII)
     Fibromodulin
     Lumican
     Perlecan
     Proteoglycan 4
Noncollagenous proteins
     COMP (cartilage oligomeric matrix protein; thrombospondin-5)
     CMP (cartilage matrix protein; matrilin-1)
     Matrilin-3
     CILP (cartilage intermediate layer protein)
     Fibronectin
     PRELP (proline/arginine-rich and leucine-rich repeat protein)
     Chondroadherin
     Fibrillin
     Tenascin-C
     Elastin
     MGP (matrix Gla protein)
     Chondromodulin-I
     Chondromodulin-II
     CD-RAP (cartilage-derived retinoic acid-sensitive protein)
     ANKH
     Matrix metalloproteinases and related enxymes
     Tissue inhibitors of metalloproteinases

Reginato and Olsen Arthritis Res 2002 4:337   doi:10.1186/ar595