TCF4 Gene
Introduction
Tcf4 Gene is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
--- [@forbes2014]
title: TCF4 Gene [@ncbi]
description: Gene information for Transcription Factor 4 and its role in neurodegenerative diseases [@sympt]
<div class="infobox infobox-gene">
<table>
<tr><th colspan="2" style="background:#f0f0f0; text-align:center;">TCF4 Gene</th></tr>
<tr><td><b>Full Name</b></td><td>Transcription Factor 4</td></tr>
<tr><td><b>Chromosome</b></td><td>18q21.2</td></tr>
<tr><td><b>NCBI Gene ID</b></td><td><a href="https://www.ncbi.nlm.nih.gov/gene/6981" target="_blank">6981</a></td></tr>
<tr><td><b>OMIM</b></td><td><a href="https://www.omim.org/entry/604275" target="_blank">604275</a></td></tr>
<tr><td><b>Ensembl ID</b></td><td><a href="https://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000196628" target="_blank">ENSG00000196628</a></td></tr>
<tr><td><b>UniProt ID</b></td><td><a href="https://www.uniprot.org/uniprot/Q9UJL9" target="_blank">Q9UJL9</a></td></tr>
<tr><td><b>Encoded Protein</b></td><td>[TCF4](/proteins/tcf4)</td></tr>
<tr><td><b>Associated Diseases</b></td><td>Pitt-Hopkins Syndrome, intellectual disability, autism spectrum disorder, schizophrenia</td></tr>
</table>
</div>
Overview
Mermaid diagram (expand to render)
The TCF4 gene (Transcription Factor 4) encodes a basic helix-loop-helix (bHLH) transcription factor that is essential for neuronal development, synaptic plasticity, and cognitive function. TCF4 is one of the most frequently mutated genes in Pitt-Hopkins syndrome and has been implicated in schizophrenia, autism, and neurodegenerative diseases including Alzheimer's disease and Parkinson's disease.
Function
TCF4 is a basic helix-loop-helix (bHLH) transcription factor that plays critical roles in neurodevelopment, synaptic plasticity, and neuronal differentiation. It regulates gene expression by binding to E-box motifs (CANNTG) in promoter and enhancer regions of target genes.
Expression
High expression in developing brain, particularly in the [cortex](/brain-regions/cortex), [hippocampus](/brain-regions/hippocampus), and cerebellum. In adult brain, expressed in neuronal progenitor cells and post-mitotic [neurons](/entities/neurons).
Disease Associations
TCF4 haploinsufficiency causes Pitt-Hopkins syndrome, a neurodevelopmental disorder characterized by intellectual disability, absent speech, microcephaly, and characteristic facial features. TCF4 dysfunction may contribute to neurodegeneration through impaired neurogenesis and synaptic function.
Key Publications
[Gene information](https://www.ncbi.nlm.nih.gov/gene/6981) - NCBI Gene Database
[UniProt entry](https://www.uniprot.org/uniprot/Q9UJL9) - UniProt Protein KnowledgebaseMolecular Mechanisms
TCF4 functions as a transcriptional regulator by forming homodimers or heterodimers with other bHLH proteins such as ASCL1, NEUROD1, and TCF12. These complexes bind to E-box DNA sequences (CANNTG) to activate or repress gene transcription. In the developing brain, TCF4 regulates genes involved in:
- Neurogenesis: Controls proliferation and differentiation of neural progenitor cells
- Synaptogenesis: Regulates synaptic protein expression and dendritic spine formation
- Myelination: Influences oligodendrocyte differentiation and myelination
- Circadian rhythm: Modulates clock gene expression in the suprachiasmatic nucleus
TCF4 interacts with several signaling pathways including Wnt/β-catenin, Notch, and BMP signaling to coordinate brain development. Dysregulation of these interactions contributes to neurodevelopmental disorders.
Therapeutic Implications
Targeting TCF4 signaling has potential therapeutic applications:
bHLH modulator drugs: Small molecules that stabilize or destabilize TCF4 complexes
Gene therapy: Viral vectors delivering functional TCF4 for loss-of-function mutations
Epigenetic therapies: [HDAC](/entities/hdac-enzymes) inhibitors to modulate TCF4 expression levels
Symptomatic treatment: Addressing cognitive and behavioral symptoms in Pitt-Hopkins syndromeResearch is ongoing to develop TCF4-targeted interventions for neurodevelopmental and neurodegenerative disorders.
Research Directions
Current research focuses on:
- Understanding TCF4 haploinsufficiency effects in Pitt-Hopkins syndrome
- Developing TCF4-regulated gene expression signatures as biomarkers
- Exploring TCF4's role in adult neurogenesis and brain repair
- Investigating TCF4 interactions with Alzheimer's disease risk genes ([APOE](/proteins/apoe-protein), TREM2)
Background
The study of Tcf4 Gene has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
Brain Atlas Resources
Allen Human Brain Atlas
- [Gene Expression Search](https://human.brain-map.org/microarray/search/show?search_term=TCF4): Search for TCF4 expression in human brain
- [Normalized Expression Data](https://human.brain-map.org/microarray): View expression levels across brain regions
BrainSpan Transcriptional Atlas
- [Developmental Expression](https://brainspan.org/static/atlas.html): TCF4 expression across brain development
Relevant Resources
- [Allen Mouse Brain Atlas](https://mouse.brain-map.org/): Mouse expression data for comparative analysis
Molecular Mechanisms
TCF4 functions as a transcriptional regulator by forming homodimers or heterodimers with other bHLH proteins such as ASCL1, NEUROD1, and TCF12. These complexes bind to E-box DNA sequences (CANNTG) to activate or repress gene transcription. In the developing brain, TCF4 regulates genes involved in:
- Neurogenesis: Controls proliferation and differentiation of neural progenitor cells
- Synaptogenesis: Regulates synaptic protein expression and dendritic spine formation
- Myelination: Influences oligodendrocyte differentiation and myelination
- Circadian rhythm: Modulates clock gene expression in the suprachiasmatic nucleus
TCF4 interacts with several signaling pathways including Wnt/β-catenin, Notch, and BMP signaling to coordinate brain development. Dysregulation of these interactions contributes to neurodevelopmental disorders.
Therapeutic Implications
Targeting TCF4 signaling has potential therapeutic applications:
[@sympt]: **Sympt
Research is ongoing to develop TCF4-targeted interventions for neurodevelopment
Research Directions
Current research focuses on:
- Understanding TCF4 haploinsufficiency effects in Pitt-Hopkins syndrome
- Developing TCF4-regulated gene expression signatures as biomarkers
- Exploring TCF4's role in adult neurogenesis and brain repair
- Investigating TCF4 interactions with Alzheimer's disease risk genes (APOE, TREM2)
Brain Atlas Resources
Allen Human Brain Atlas
- [Gene Expression Search](https://human.brain-map.org/microarray/search/show?search_term=TCF4): Search for TCF4 expression in human brain
- [Normalized Expression Data](https://human.brain-map.org/microarray): View expression levels across brain regions
BrainSpan Transcriptional Atlas
- [Developmental Expression](https://brainspan.org/static/atlas.html): TCF4 expression across brain development
Relevant Resources
- [Allen Mouse Brain Atlas](https://mouse.brain-map.org/): Mouse expression data for comparative analysis
References
See Also
- [Proteins Index](/proteins)
- [Genes Index](/genes)
- [Alzheimer's Disease](/diseases/alzheimers-disease)
- Parkins- Huntington's Disease
- Synaptic Dysfuncti
External Links
- [N- [UniProt: TCF4](https://www.uniprot.org/uniprot/Q9UJL9)
- [Ensembl: TCF4](https://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000196628)
Pathway Diagram
The following diagram shows the key molecular relationships involving TCF4 Gene discovered through SciDEX knowledge graph analysis:
Mermaid diagram (expand to render)