Gene battery

Regulation of Gene Expression 3. A Variety of Mechanisms in Eukaryotes
Regulation at Transcription Level
Activation of transcription
Britten-Davidson model for unit of transcription
Gene battery
Chromosomal proteins and gene expression
Repression of transcription 
Specific DNA sequences controlling transcription
Transgenic plants to study regulatory sequences
Modification of DNA sequences and their transcripts in gene expression
Alternative splicing of transcripts
Regulation at translation level
Activation and repression of translation
Masked mRNA in eggs of sea urchin and Xenopus
Regulation by gene re-arrangement
Expression of immunoglobulin genes
Yeast mating type switching
Trypanosome surface antigen (VSG) switching
Synthesis of mRNA in pieces in VSG genes in trypanosome
Regulation by reversible phosphorylation
Signal transduction and second messengers
Proteins and peptide hormones and gene expression
Steroid hormones and gene expression
Interferon stimulated gene expression (without a second messenger)
Cell surface receptors in cholesterol metabolism and drug production
Ubiquitin protein and regulation of heat shock genes
Gene battery
In Britten-Davidson model, a set of structural genes controlled by one sensor site is termed a battery. Sometimes, when major changes are needed, it is necessary to activate several sets of genes. If one sensor site is associated with several integrators, it may cause transcription of all integrators at the same time thus causing transcription of several producer genes through receptor sites. The repetition of integrator and receptor sequences is consistent with the knowledge that sufficient repeated DNA occurs in eukaryotes.