Control of Neuronal Gene Transcription and Behavior by the Epigenetic Suppressor Complex G9a/GLP

  • Anne Schaefer
Part of the Research and Perspectives in Neurosciences book series (NEUROSCIENCE)


Epigenetic control of cellular phenotypes is governed by numerous enzymes that contribute to post-synthetic modifications of DNA and associated histone proteins. These modifications facilitate the assembly of protein complexes that regulate gene expression in a highly orchestrated fashion. The importance of epigenetic regulators in brain development and function is supported by the strong association between mental retardation in humans and the aberrant structure or expression of various epigenetic regulators

Using conditional mutagenesis in mice, we found that the histone methyltransferase complex G9a/GLP (Ehmt1/Ehmt2 in humans), which controls gene expression via di-methylation of histone 3 on lysine 9 (H3K9me2), regulates cognition and complex behavior in mice. Postnatal neuron-specific loss of G9a/GLP in mice recapitulates key symptoms of a severe mental retardation syndrome in humans that is associated with the reduced expression of GLP/Ehmt1. In an attempt to unravel the mechanism of G9a/GLP regulated cognition and behavior, we will discuss the nature of gene expression changes associated with the loss of G9a/GLP.


Mental Retardation Syndrome Methyltransferase Complex Large Ribosomal Subunit Protein Translate Ribosome Affinity Purification Postnatal Forebrain 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



I would like to thank Paul Greengard and Alexander Tarakhovsky for their support and discussions and Shrihari Sampath, Myriam Heiman, James Surmeier, and Nathaniel Heintz for their contribution to the work. The work was supported by the Deutsche Forschungsgemeinschaft (DFG) and the National Institute on Drug Abuse (NIDA).


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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Laboratory of Molecular and Cellular NeuroscienceThe Rockefeller UniversityNew YorkUSA
  2. 2.Laboratory of Brain Epigenetics, Friedman Brain InstituteMount Sinai School of MedicineNew YorkUSA

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