The modulation of any of the stages of gene expression, hence, it encompasses the various systems that control and determine which genes are switched on and off, and when, how long, and to what extent the genes are expressed.
Gene regulation may occur in the following stages of gene expression:
- Post-transcriptional modification
- RNA transport
- mRNA degradation
- Post-translational modifications
Variant: regulation of gene expression
See also: regulator gene.