Housekeeping gene
Housekeeping gene
A Housekeeping gene (pronunciation: /ˈhaʊsˌkiːpɪŋ dʒiːn/) is a type of gene that is expressed in all cell types to maintain cellular function and support the life of an organism. These genes are essential for basic cellular functions, such as protein synthesis, cell cycle control, metabolism, and cellular structure maintenance.
Etymology
The term "housekeeping gene" is derived from the concept of housekeeping tasks, which are necessary for the maintenance of a household. Similarly, housekeeping genes are necessary for the maintenance of cellular functions.
Related Terms
- Gene expression: The process by which information from a gene is used in the synthesis of a functional gene product.
- Constitutive gene: A gene that is transcribed continually as opposed to a facultative gene, which is only transcribed when needed.
- Cellular differentiation: The process where a cell changes from one cell type to another.
- Transcription (genetics): The first step of gene expression, in which a particular segment of DNA is copied into RNA by the enzyme RNA polymerase.
See also
External links
- Medical encyclopedia article on Housekeeping gene
- Wikipedia's article - Housekeeping gene
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