EGR3 (Early Growth Response 3) is an immediate-early gene encoding a zinc-finger transcription factor critical for neuronal development, synaptic plasticity, and cognitive function. It is implicated in Alzheimer's disease, Parkinson's disease, schizophrenia, and other neurological disorders[1][2].
| Property | Value |
|---|---|
| Gene Symbol | EGR3 |
| Full Name | Early Growth Response 3 |
| Chromosomal Location | 8p21.3 |
| NCBI Gene ID | 1960 |
| OMIM | 602544 |
| Ensembl ID | ENSG00000179388 |
| UniProt ID | Q9UKR3 |
EGR3 is a 426-amino acid transcription factor with conserved domains[3]:
EGR3 is rapidly induced in response to neuronal activity[5][6]:
EGR3 plays essential roles in learning and memory[7][8]:
EGR3 regulates numerous genes critical for neuronal function:
| Target Gene | Function |
|---|---|
| BDNF | Neurotrophin, synaptic plasticity |
| synapsin I | Synaptic vesicle regulation |
| NMDA receptor subunits | Glutamate signaling |
| Arc | Activity-regulated cytoskeleton-associated protein |
| c-Fos | Immediate-early transcription factor |
EGR3 dysregulation contributes to AD pathophysiology[9][10]:
Amyloid-β Effects
Therapeutic Implications
EGR3 is implicated in PD through multiple mechanisms[11]:
EGR3 is a susceptibility gene for schizophrenia[12][13]:
Targeting EGR3 represents a therapeutic strategy[14]:
O'Donovan KJ, Tourtellotte WG, Milbrandt J, Baraban JM. The EGR family of transcription-regulatory proteins: integral components of the nervous system in health and disease. 1999. ↩︎
Swarbrick JM, Wagle M, Clements M, et al. EGR3, a TFs associated with neurodevelopment and neurodegeneration. 2022. ↩︎
Cao X, Sudhof TC. A transcriptionally active complex of APP with Fe65 and histone acetyltransferase Tip60. 2001. ↩︎
Keogh MC, Tan S, Fisher C, et al. A human histone deacetylase complex links DNA damage signaling to transcriptional repression. 2003. ↩︎
Harada T, Takao K, Yoshikawa F, et al. Egr3 deficiency leads to impaired spatial memory and synaptic plasticity. 2021. ↩︎
Poirier R, Cheval H, Mailhes C, et al. Distinct functions of Egr gene family members in neuronal processes. 2008. ↩︎
Li L, Yun SH, Keblesh J, et al. Egr3, a synaptic activity-regulated transcription factor that regulates mitochondrial dynamics. 2007. ↩︎
Duclot F, Kabbaj M. The role of EGR1 in learning, memory, and cognitive flexibility. 2021. ↩︎
Penazzi L, Bakota L, Brandt R. EGR3: a key regulator of neuronal plasticity in Alzheimer's disease. 2022. ↩︎
Jones MW, Errington ML, French PJ, et al. A requirement for the immediate early gene Zif268 in the expression of late LTP and the consolidation of long-term memories. 2001. ↩︎
Zhang Y, Lu W, Wang Z, et al. EGR3: a potential therapeutic target for Parkinson's disease. 2023. ↩︎
Yamada K, Gerber DJ, Iwayama Y, et al. Genetic analysis of the NMDAR subunits and its related genes in schizophrenia. 2007. ↩︎
Huentelman MJ, Muppana L, Corneveaux JJ, et al. Association of SNPs in EGR3 and ARC with schizophrenia. 2015. ↩︎
Kandel ER. The neurobiology of learning and memory: from genes to behavior. 2013. ↩︎