Type-II collagen is the basis for articular cartilage and hyaline cartilage. It makes up 50 % of all protein in cartilage and 85-90 % of collagen of articular cartilage. Type II collagen does form fibers. This fibrillar network of collagen allows cartilage to entrap the proteoglycan aggregate as well as provide tensile strength to the tissue. Description: Human adult knee cartilage. Alternative Names: Cartilage collagen antibody, COL11A3 antibody, Chondrocalcin antibody, COL2A1 antibody