Type IX collagen is a nonfibrillar collagen composed of three gene products, alpha 1(IX), alpha 2(IX), and alpha 3(IX). Type IX molecules are localized on the surface of type II-containing fibrils and
Collagen 6 (COL6) is known for its role in a spectrum of congenital muscular dystrophies, which are often accompanied by respiratory dysfunction. However, little is known regarding the function of CO