{{.infobox .infobox-gene}}
| Symbol | NCOA1 |
| Full Name | Nuclear Receptor Coactivator 1 |
| Chromosome | 2p23.3 |
| NCBI Gene | 8644 |
| OMIM | 602071 |
| Ensembl | ENSG00000084676 |
| UniProt | Q15788 |
| Protein Length | 1459 amino acids |
| Molecular Weight | ~164 kDa |
NCOA1 (Nuclear Receptor Coactivator 1), also known as SRC-1 (Steroid Receptor Coactivator-1), is a member of the p160 family of nuclear receptor coactivators[1]. It plays a critical role in modulating gene expression by enhancing the transcriptional activity of nuclear receptors and other transcription factors. NCOA1 is widely expressed in the brain and has been implicated in various neurological processes including neuroprotection, synaptic plasticity, and neurodegenerative disease pathogenesis[2].
NCOA1 contains several functional domains:
NCOA1 functions as a molecular bridge:
During brain development, NCOA1 regulates:
In the mature brain, NCOA1 modulates:
NCOA1 has been implicated in Alzheimer's disease through several mechanisms:
Studies have shown:
In Parkinson's disease, NCOA1 may play roles in:
NCOA1 dysregulation has been observed in ALS:
NCOA1 interacts with multiple nuclear receptors relevant to neurodegeneration:
| Nuclear Receptor | NCOA1 Role | Neurodegenerative Relevance |
|---|---|---|
| PPARγ | Coactivation | Anti-inflammatory, metabolic regulation |
| ERα/β | Coactivation | Neuroprotective estrogen signaling |
| GR | Coactivation | Stress response, cortisol regulation |
| TR | Coactivation | Metabolic regulation |
| RAR | Coactivation | Retinoic acid signaling |
| LXR | Coactivation | Cholesterol metabolism |
NCOA1 serves as a coactivator for several drug targets:
Approaches being explored:
NCOA1 genetic variants have been studied in:
High expression in:
NCOA1 interacts with or regulates several neurodegeneration-related genes:
NCOA1 (SRC-1): structure and function. (2000). Endocrine Reviews. 2000. ↩︎
Nuclear receptor coactivators in the brain. (2012). Journal of Molecular Neuroscience. 2012. ↩︎
Structural basis for NCOA1 function. (2002). Molecular Cell. 2002. ↩︎
Mechanism of nuclear receptor coactivation. (2004). Cell. 2004. ↩︎
NCOA1 in brain development. (2011). Developmental Neuroscience. 2011. ↩︎
NCOA1 and synaptic plasticity. (2015). Learning and Memory. 2015. ↩︎
NCOA1 in Alzheimer's disease. (2018). Neurobiology of Aging. 2018. ↩︎
Nuclear receptor coactivators as AD therapeutic targets. (2020). Journal of Alzheimer's Disease. 2020. ↩︎
NCOA1 and Parkinson's disease. (2019). Movement Disorders. 2019. ↩︎
NCOA1 in ALS pathogenesis. (2021). Brain Pathology. 2021. ↩︎
Targeting nuclear receptor coactivators in neurodegeneration. (2017). Pharmacological Reviews. 2017. ↩︎
NCOA1 modulators in clinical development. (2022). Expert Opinion on Therapeutic Targets. 2022. ↩︎
NCOA1 polymorphisms and neurodegenerative disease. (2016). Human Molecular Genetics. 2016. ↩︎
NCOA1 expression in human brain. (2013). Journal of Comparative Neurology. 2013. ↩︎
NCOA1 and mitochondrial function in neurodegeneration. (2020). Cell Metabolism. 2020. ↩︎