This molecule is stained by Masson's Trichrome, and it is modified by prolyl hydroxylase in the ER during synthesis, which requires vitamin C as a cofactor.  
Mutations in the sixth type of this molecule causes Bethlem myopathy and Ullrich myopathy. Mutations in another version of this molecule causes Ehlers- Danlos syndrome, while another mutation in this molecule causes Alports's syndrome.  This molecule is stained by Masson's Trichrome, and it is modified by prolyl hydroxylase in the ER during synthesis, which requires vitamin C as a cofactor.  Every third residue in this protein is glycine, which allows it to stabilize into a characteristic triple helix.  FTP, name this fibrous connective tissue protein found in tendons, bones, teeth, and skin, the most abundant protein in mammals.
Mutations in the sixth type of this molecule causes Bethlem myopathy and Ullrich myopathy.
{Collagen}