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Reviewed November 2006
What is the official name of the ATP2B2 gene?
The official name of this gene is “ATPase, Ca++ transporting, plasma membrane 2.”
ATP2B2 is the gene's official symbol. The ATP2B2 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 ATP2B2 gene?
The ATP2B2 gene provides instructions for making an enzyme called plasma membrane calcium-transporting ATPase 2 (PMCA2). This enzyme belongs to a family of ATPase enzymes that helps control the level of positively charged calcium atoms (calcium ions) inside cells. Calcium ions act as signals for a large number of activities that are important for the normal development and function of cells. PMCA2 appears to be important for regulating calcium ion levels in certain cells in the brain, spinal cord, liver, inner ear, and in the breast when milk is produced.
Researchers are interested in PMCA2's role in hearing because of its presence in the inner ear. Hearing requires the conversion of sound waves to nerve impulses that are transmitted via the auditory nerve to the brain. This conversion process occurs in specialized cells called hair cells and is triggered by a rapid change in the level of certain ions, including calcium ions. Studies indicate that PMCA2 exports calcium ions from hair cells and contributes to changes in ion levels that are needed for the conversion of sound waves to nerve impulses.
Does the ATP2B2 gene share characteristics with other genes?
The ATP2B2 gene belongs to a family of genes called ATP (ATPase superfamily).
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 ATP2B2 gene related to health conditions?
Where is the ATP2B2 gene located?
Cytogenetic Location: 3p25.3
Molecular Location on chromosome 3: base pairs 10,324,022 to 10,707,954
The ATP2B2 gene is located on the short (p) arm of chromosome 3 at position 25.3.
More precisely, the ATP2B2 gene is located from base pair 10,324,022 to base pair 10,707,954 on chromosome 3.
See How do geneticists indicate the location of a gene? in the Handbook.
Where can I find additional information about ATP2B2?
You and your healthcare professional may find the following resources about ATP2B2 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 ATP2B2 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 ATP2B2?
You may find definitions for these and many other terms in the Genetics Home Reference Glossary.
See also Understanding Medical Terminology.
References (4 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.