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Reviewed October 2010
What is the official name of the COL6A2 gene?
The official name of this gene is “collagen, type VI, alpha 2.”
COL6A2 is the gene's official symbol. The COL6A2 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 COL6A2 gene?
The COL6A2 gene provides instructions for making one component of type VI collagen, which is a flexible protein that surrounds muscle cells. Specifically, the protein produced from the COL6A2 gene is the alpha(α)2(VI) chain of type VI collagen. This chain combines with two other types of α(VI) chains (the α1 and α3 chains) to make a molecule called a collagen VI monomer. Two collagen VI monomers attach (bind) together to form collagen VI dimers. Two dimers group together to form a larger molecule called a tetramer, which is the complete type VI collagen molecule.
Type VI collagen molecules form complex networks that make up a large portion of the extracellular matrix surrounding muscle cells. The extracellular matrix is an intricate lattice that forms in the space between cells and provides structural support. The extracellular matrix that surrounds muscle cells is necessary for muscle cell stability and growth. Type VI collagen networks play an especially important role in the extracellular matrix of muscle that is used for movement (skeletal muscle).
Does the COL6A2 gene share characteristics with other genes?
The COL6A2 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 COL6A2 gene related to health conditions?
Where is the COL6A2 gene located?
Cytogenetic Location: 21q22.3
Molecular Location on chromosome 21: base pairs 46,098,118 to 46,132,848
The COL6A2 gene is located on the long (q) arm of chromosome 21 at position 22.3.
More precisely, the COL6A2 gene is located from base pair 46,098,118 to base pair 46,132,848 on chromosome 21.
See How do geneticists indicate the location of a gene? in the Handbook.
Where can I find additional information about COL6A2?
You and your healthcare professional may find the following resources about COL6A2 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 COL6A2 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 COL6A2?
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.