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Reviewed October 2015
What is the official name of the COL6A3 gene?
The official name of this gene is “collagen type VI alpha 3.”
COL6A3 is the gene's official symbol. The COL6A3 gene is also known by other names, listed below.
Read more about gene names and symbols on the About page.
What is the normal function of the COL6A3 gene?
The COL6A3 gene provides instructions for making one component of type VI collagen, which is a flexible protein found in the space that surrounds cells. Specifically, the protein produced from the COL6A3 gene is the alpha(α)3(VI) chain of type VI collagen. This chain combines with chains produced from other genes to produce a complete type VI collagen molecule.
Collagens are found in the extracellular matrix, which is an intricate lattice that forms in the space between cells and provides structural support. Type VI collagen is located in the extracellular matrix surrounding cells that make up the muscles used for movement (skeletal muscle cells) and cells that make up connective tissue, which provides strength and flexibility to structures throughout the body, including skin and joints. The extracellular matrix is necessary for cell stability and growth. Research suggests that type VI collagen links basement membranes, which are thin, sheet-like structures that are part of the extracellular matrix, to nearby cells.
Does the COL6A3 gene share characteristics with other genes?
The COL6A3 gene belongs to a family of genes called COL (collagens).
A gene family is a group of genes that share important characteristics. Classifying individual genes into families helps researchers describe how genes are related to each other. For more information, see What are gene families? in the Handbook.
How are changes in the COL6A3 gene related to health conditions?
Where is the COL6A3 gene located?
Cytogenetic Location: 2q37
Molecular Location on chromosome 2: base pairs 237,324,012 to 237,414,370
(Homo sapiens Annotation Release 107, GRCh38.p2) (
The COL6A3 gene is located on the long (q) arm of chromosome 2 at position 37.
More precisely, the COL6A3 gene is located from base pair 237,324,012 to base pair 237,414,370 on chromosome 2.
See How do geneticists indicate the location of a gene? in the Handbook.
Where can I find additional information about COL6A3?
You and your healthcare professional may find the following resources about COL6A3 helpful.
You may also be interested in these resources, which are designed for genetics professionals and researchers.
What other names do people use for the COL6A3 gene or gene products?
See How are genetic conditions and genes named? in the Handbook.
Where can I find general information about genes?
The Handbook provides basic information about genetics in clear language.
These links provide additional genetics resources that may be useful.
What glossary definitions help with understanding COL6A3?
acids ; amino acid ; basement membrane ; basement membranes ; cell ; collagen ; congenital ; connective tissue ; extracellular ; extracellular matrix ; gene ; glycine ; joint ; molecule ; muscle cells ; muscular dystrophy ; mutation ; protein ; skeletal muscle ; tissue
You may find definitions for these and many other terms in the Genetics Home Reference Glossary.
See also Understanding Medical Terminology.
References (7 links)
The resources on this site should not be used as a substitute for professional medical care or advice. Users seeking information about a personal genetic disease, syndrome, or condition should consult with a qualified healthcare professional. See How can I find a genetics professional in my area? in the Handbook.