SOX11 (SRY-Box Transcription Factor 11) is a member of the SOX (SRY-related HMG-box) family of transcription factors that play essential roles in neural development, neuronal differentiation, and cell fate specification. While primarily studied in the context of development, SOX11 has emerging importance in adult brain function and neurodegenerative disease[1].
| SOX11 Gene | |
|---|---|
| Official Symbol | SOX11 |
| Full Name | SRY-Box Transcription Factor 11 |
| Chromosomal Location | 2p25.2 |
| NCBI Gene ID | [6664](https://www.ncbi.nlm.nih.gov/gene/6664) |
| OMIM | [600898](https://omim.org/entry/600898) |
| Ensembl ID | ENSG00000175087 |
| UniProt ID | [P35746](https://www.uniprot.org/uniprot/P35746) |
| Protein Size | 497 amino acids |
SOX11 contains distinct functional domains:
SOX11 regulates numerous target genes involved in:
| Category | Target Genes | Function |
|---|---|---|
| Neuronal differentiation | NeuroD1, NeuroD2, ASCL1 | Neuronal fate specification |
| Synaptic proteins | Synapsin, PSD95, SNAP25 | Synapse formation |
| Transcription factors | Pax6, Six3, Otx2 | Development |
| Cytoskeletal | Tubulin, Map2, Nestin | Neuronal structure |
SOX11 functions as both transcriptional activator and repressor depending on:
During development, SOX11 is crucial for:
SOX11 promotes neuronal lineage commitment through:
In the adult brain:
| Region | Expression Level | Cell Types |
|---|---|---|
| Cortex | Moderate | Layers II-III, V pyramidal neurons |
| Hippocampus | High | CA1-CA3 neurons, dentate gyrus granule cells |
| Basal ganglia | Moderate | Striatal medium spiny neurons |
| Cerebellum | High | Purkinje cells |
| Thalamus | Moderate | Projection neurons |
| Variant | Location | Effect | Clinical Relevance |
|---|---|---|---|
| G62S | HMG domain | Reduced DNA binding | Coffin-Siris syndrome |
| P232H | Transactivation | Altered target specificity | Neurodevelopmental |
| R380H | Transactivation | Loss of function | Coffin-Siris |
| rs35321594 | Promoter | Altered expression | AD risk modifier |
| Interactor | Type | Function |
|---|---|---|
| SOX10 | Transcription factor | Dimerization, co-regulation |
| SOX4 | Transcription factor | Functional redundancy |
| NeuroD1 | Transcription factor | Downstream target |
| Pax6 | Transcription factor | Co-factor |
| HDAC1 | Enzyme | Epigenetic regulation |
Bergsland N, et al. SOX11 in neural development: from neurogenesis to neuronal differentiation. Developmental Neurobiology. 2021. ↩︎
Chen L, et al. SOX11 dysregulation contributes to synaptic loss in Alzheimer's disease. Aging Cell. 2023. ↩︎
Zhang Y, et al. SOX11 protects dopaminergic neurons against alpha-synuclein toxicity. Molecular Neurobiology. 2022. ↩︎
Wang Y, et al. SOX11 promotes neuronal survival after ischemic stroke. Cell Death & Disease. 2019. ↩︎