| H3F3A | |
|---|---|
| Gene Symbol | H3F3A |
| Full Name | H3.3 Histone A |
| Chromosomal Location | 1q42.12 |
| NCBI Gene ID | 3020 |
| Ensembl ID | ENSG00000163041 |
| OMIM ID | 601128 |
| UniProt ID | P84243 |
| Associated Diseases | Neurodevelopmental Disorders, Gliomas, Neurodegeneration |
| Protein Family | H3 histone family (Replication-independent histone variant) |
H3F3A H3.3 Histone A is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
H3F3A encodes histone H3.3, a replication-independent histone variant that replaces canonical H3 histones in nucleosomes. H3.3 is incorporated into chromatin throughout the genome, particularly at transcriptionally active regions, telomeres, and pericentromeric heterochromatin. In neurons, H3.3 plays crucial roles in activity-dependent gene expression, synaptic plasticity, and neuronal epigenetics. Mutations in H3F3A are associated with gliomas and neurodevelopmental disorders. The H3.3K27M mutation drives pediatric gliomas, while germline variants cause developmental syndromes. In neurodegeneration, altered H3.3 dynamics affects chromatin accessibility and gene expression patterns critical for neuronal survival, making it a focus of epigenetic therapies for AD and PD.
This page provides comprehensive information about the subject's role in neurodegenerative diseases. The subject participates in various molecular pathways and cellular processes relevant to Alzheimer's disease, Parkinson's disease, and related conditions.
The H3F3A gene encodes a protein involved in key cellular processes relevant to neuronal function and survival. This protein plays important roles in transcriptional regulation, chromatin dynamics, and cellular signaling pathways that are critical for proper brain function.
Pathogenic variants in H3F3A are associated with several neurological conditions, including spinocerebellar ataxias, neurodevelopmental disorders, and neurodegenerative diseases. The gene's normal function in transcriptional control and chromatin regulation becomes disrupted in these disease states.
H3F3A is expressed in various brain regions, with particularly high expression in areas involved in motor control, learning, and memory. The gene shows cell-type specific expression patterns in neurons and glia.
The study of H3F3A H3.3 Histone A 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.