COL2A1 also konwn as Collagen II alpha 1 a fibrillar collagen found in cartilage and the vitreous humor of the eye. COL2A1 plas a crucial component of cartilage that provides structural support and resilience to joints. COL2A1 is primarily located in cartilage, where COL2A1 forms the structural framework essential for maintaining tissue integrity and resilience. This localization is crucial because cartilage serves as a cushion between bones in joints, providing support and flexibility while absorbing shock during movement. COL2A1 is vital for proper functioning of articular cartilage, and COL2A1 degradation is associated with various joint disorders, including osteoarthritis and rheumatoid arthritis. The unique triple helix structure of COL2A1 allows for withstanding tensile forces, making COL2A1 a key player in cartilage mechanical properties.