Npas4 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.
NPAS4 (Neuronal PAS Domain Protein 4) is a neuronal-specific transcription factor that plays critical roles in activity-dependent gene regulation, synaptic plasticity, memory formation, and neuronal survival [1]. Unlike the broadly expressed c-Fos, NPAS4 expression is highly restricted to neurons and is specifically induced by neuronal activity. This makes NPAS4 a precise marker of activated neural circuits and a key regulator of the transcriptional programs that underlie learning and memory [2].
NPAS4 contains several distinct domains:
| Domain | Position | Function |
|---|---|---|
| bHLH domain | N-terminal (50-100 aa) | DNA binding, dimerization |
| PAS-A domain | (150-250 aa) | Dimerization, ligand sensing |
| PAS-B domain | (300-400 aa) | Dimerization, regulatory |
| Transactivation domain | C-terminal | Transcriptional activation |
NPAS4 is uniquely activated by:
NPAS4 controls genes essential for:
NPAS4 typically forms heterodimers:
NPAS4 regulates diverse gene programs:
Activity-dependent regulation of inhibitory synapse development by Npas4. Nature, 2008. PMID:18815592
Npas4 regulates a transcriptional program essential for synaptic plasticity and learning. Neuron, 2011. PMID:21826922
Neural activity regulates synaptic properties and dendritic structure in vivo through Npas4/CBP. Nature, 2012. PMID:22620918
Npas4: linking neuronal activity to memory. Trends in Neurosciences, 2016. PMID:26996521
Npas4 deficiency and early-life seizures. Annals of Neurology, 2020. PMID:31970887
The neuronal transcription factor NPAS4 as a plasticity gene. Neurobiology of Learning and Memory, 2016. PMID:26968034
NPAS4: Evolutionarily conserved transcription factor. Brain Research, 2017. PMID:28801181
The study of Npas4 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.
Lin, Y. et al. (2008). Activity-dependent regulation of inhibitory synapse development by Npas4. Nature, 455(7217), 1198-1204. PMID:18815592
Ramamoorthi, K. et al. (2011). Npas4 regulates a transcriptional program essential for synaptic plasticity and learning. Neuron, 71(3), 512-528. PMID:21826922
Bloodgood, B.L. et al. (2013). Neural activity regulates synaptic properties and dendritic structure in vivo through Npas4/CBP. Nature, 485(7399), 517-521. PMID:22620918
Sun, X. & Lin, Y. (2016). Npas4: linking neuronal activity to memory. Trends in Neurosciences, 39(4), 264-275. PMID:26996521
Maya-Vetencourt, J.F. & Maffei, L. (2016). The neuronal transcription factor NPAS4 as a plasticity gene. Neurobiology of Learning and Memory, 130, 92-101. PMID:26968034
Flavell, S.W. et al. (2008). Activity-dependent regulation of MEF2 transcription factors suppresses excitatory synapse number. Nature, 441(7097), 1094-1097. PMID:16554823
Pruunsild, P. et al. (2017). NPAS4: Evolutionarily conserved transcription factor. Brain Research, 1674, 11-27. PMID:28801181
Yokoyama, M. & Inoue, Y. (2020). Npas4 deficiency and early-life seizures. Annals of Neurology, 87(4), 503-514. PMID:31970887
Last updated: 2026-03-07