Collagen type V collagen (collagen V) is a member of group I collagen (fibrillar forming collagen). Collagen V is a minor connective tissue component of nearly ubiquitous distribution. Collagen V binds to DNA, heparan sulfate, thrombospondin, heparin, and insulin. Defects in COL5A1 are a cause of Ehlers-Danlos syndrome type 1 (EDS1), also known as Ehlers-Danlos syndrome gravis or severe classic type Ehlers-Danlos syndrome. EDS is a connective tissue disorder characterized by hypere, Xenopus/Amphibian,tensible skin, atrophic cutaneous scars due to tissue fragility and joint hyperla, Xenopus/Amphibian,ity.