What is the difference between COL1A1 and COL1A2?
COL1A1 gene mutations are more pathogenic and cause OI more often than COL1A2 gene mutations. One third of glycine (Gly) substitutions in the COL1A1 gene are lethal, whereas only 1/5 of Gly pathogenic variants in the COL1A2 gene are fatal [5].
Where is the COL1A1 gene located?
Gene. The COL1A1 gene is located on the long (q) arm of chromosome 17 between positions 21.3 and 22.1, from base pair 50183289 to base pair 50201632.
What is the COL4A1 gene?
The COL4A1 gene provides instructions for making one component of type IV collagen, which is a flexible protein important in the structure of many tissues throughout the body. Specifically, this gene makes the alpha1(IV) chain of type IV collagen.
What chromosome is COL1A2 on?
Collagen, type I, alpha 2
| COL1A2 | ||
|---|---|---|
| Location (UCSC) | Chr 7: 94.39 – 94.43 Mb | Chr 6: 4.5 – 4.54 Mb |
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What is COL1A1 gene mutation?
Mutations in the COL1A1 gene have been found to cause several forms of Ehlers-Danlos syndrome, a group of disorders that affect the connective tissues supporting the skin, bones, blood vessels, and many other organs and tissues. These mutations occur in one copy of the COL1A1 gene in each cell.
What is COL1A1 and COL1A2 genes?
Most patients with a clinical diagnosis of OI type I-IV have a mutation in the COL1A1 or COL1A2 genes which encode the two alpha chains of type I collagen, the major component of the bone matrix.
What is collagen type 4 good?
Type IV collagen is the main component of the BM and provides a scaffold for assembly and mechanical stability, but is also important in cell adhesion, migration, survival, proliferation, and differentiation [12].
What is Gould syndrome?
Gould Syndrome is often characterized by abnormal blood vessels in the brain (cerebral vasculature defects), eye development defects (ocular dysgenesis), muscle disease (myopathy), and kidney abnormalities (renal pathology); however, many other aspects of the syndrome including abnormalities affecting the structure of …
What does the COL1A2 gene do?
The COL1A2 gene provides instructions for making part of a large molecule called type I collagen. Collagens are a family of proteins that strengthen and support many tissues in the body, including cartilage, bone, tendon, skin, and the white part of the eye (the sclera).
Where is type 1 collagen found?
bone
Collagen type I is present in skin, tendons, vasculature, as well as organs such as lungs, heart and others, and forms the main component in the organic portion of the calcified tissue of bone and teeth [1, 3].
What does COL1A1 code for?
The COL1A1 gene provides instructions for making part of a large molecule called type I collagen. Collagens are a family of proteins that strengthen and support many tissues in the body, including cartilage, bone, tendon, skin, and the white part of the eye (the sclera).
What happens if collagen is mutated?
Mutations in Type I Collagen That Cause Osteogenesis Imperfecta. Osteogenesis imperfecta (brittle-bone disease) is characterized by a fragility of bone that is apparent early in life. Severe forms produce death in utero because of the extreme fragility of bone, skin, ligaments, and other tissues rich in Type I collagen …