Confused and have questions? We’ve got answers. With Chegg Study, you can get step-by-step solutions to your questions from an expert in the field. If you rather get 1:1 study help, try 30 minutes of free online tutoring with Chegg Tutors.

Collagen type I-alpha 1

From Biology-Online Dictionary | Biology-Online Dictionary
Jump to: navigation, search



A protein that is responsible to provide instructions of type 1 collagen which is involved in the structure and support of various tissues in the body including skin, tendon, cartilage and sclera.


Collagen type I-alpha 1 gene is mapped on chromosome 17q21.33 containing 51 exons with a molecular mass of 120kD comprises of two alpha 1 chains and one alpha 2 chain. It functions on the degree of hydroxylation ofproline and lysine residues for cross-linking and glycosylation.

Collagen type I-alpha 1 is found abundantly in cornea, dermis, bone andtendon where in bones and fibril is mineralized with calcium hydroxyapatite.

Collagen type I-alpha 1 gene mutation is implicated in some disease like osteogenesis imperfecta type I-IV a disorder typified by the reduced production of pro-alpha1 chains that caused cells to make only half of the normal amount of type 1 collagen. It also associated in Caffey disease an infantile cortical hypertosis that usually occurs at 5 months old characterized by swelling of soft tissues, pain and excessive bone formation.

Gene name: COL1A1

Protein name: Collagen alpha-1(I) chain



Alpha-1 type I collagen preprotein

Collagen type I alpha 1

COL1A1/PDGFB fusion gene, included

Collagen of skin, tendon and bone alpha-1 chain

See also: