Promotes attachment of chondrocytes, fibroblasts, and osteoblasts. This binding is mediated (at least for chondrocytes and fibroblasts) by the integrin alpha(2)beta(1). May play an important role in the regulation of chondrocyte growth and proliferation (By similarity).
Subcellular locations: Secreted, Extracellular space, Extracellular matrix
Present in chondrocytes at all ages.