Housekeeping gene

Definition

noun, plural: housekeeping genes

Any of the genes that are constitutively expressed at a relatively constant level across many or all known conditions.


Supplement

Housekeeping genes are those genes that are always expressed because they code for proteins that are constantly required by the cell, hence, they are essential to a cell and always present under any conditions. It is assumed that their expression is unaffected by experimental conditions. The proteins they code are generally involved in the basic functions necessary for the sustenance or maintenance of the cell. Examples of housekeeping genes include actin, GAPDH and ubiquitin.


Compare: luxury gene.
See also: genetic expression, transcription.


Please contribute to this project, if you have more information about this term feel free to edit this page



This page was last modified on 30 June 2008, at 08:05. This page has been accessed 41,661 times. 
What links here | Related changes | Permanent link