Type I collagen defect
Osteogenesis imperfecta
Type I collagen
bones, skin, tendons
Type II collagen
cartilage
Type III collagen defect
Ehlers-Danlos syndrome
Type III collagen
reticulin (skin, vessels, uterus, granulation tissue)
Type IV collagen
basement membrane/basal lamina
Type IV collagen defect
Alport syndrome