type 1 collagen: locations and disorders
dermis, bone, tendons, ligaments, dentin, cornea, blood vessels, scar tissue
osteogenesis imperfecta
type 2 collagen: locations and disorders
cartilage, vitreous humor, nucleus pulposus: no associated disorder
type 3 collagen : locations and disorders
skin, lungs, blood vessels, bone, lymphatics, granulation tissue: Ehlers Danlos syndrome (types 3 and 4)
type 4 collagen: locations and disorders
basement membrane: alport syndrome