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What causes achondrogenesis?

Research has shown that changes (mutations) in the SLC26A2 and COL2A1 genes cause achondrogenesis types 1B and 2, respectively. The genetic cause of achondrogenesis type 1A remains unknown. 

The SLC26A2 gene provides instructions for making a protein that is important for the normal development of cartilage and for the conversion of cartilage to bone. The COL2A1 gene provides instructions for making a protein that forms a type of collagen found mostly in cartilage and in the clear gel that fills the eyeball (vitreous).  Mutations in these genes result in the production of proteins that are unable to properly perform their jobs within the body.[1]
Last updated: 10/29/2010

  1. Achondrogenesis. Genetics Home Reference. February, 2008; Accessed 10/25/2010.
  2. Faivre L. and Cormier-Daire V.. Achondrogenesis. Orphanet. May, 2003; Accessed 10/24/2010.