| TFAP4 Protein — Transcription Factor AP-4 | |
|---|---|
| Protein Name | Transcription Factor AP-4 |
| Gene Symbol | TFAP4 |
| UniProt | Q01658 |
| Protein Length | 641 amino acids |
| Molecular Weight | ~71 kDa |
| Structure | bZIP Transcription Factor |
| Subcellular Location | Nucleus |
| Expression | Cerebral cortex, Hippocampus, Cerebellum |
Tfap4 Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
TFAP4 (Transcription Factor AP-4) is a 641 amino acid protein belonging to the basic leucine zipper (bZIP) family of transcription factors[1]. It functions as a transcriptional activator that binds to the symmetric DNA sequence CAGTGT and regulates genes involved in cell growth, differentiation, and neuronal development[2]. The protein is encoded by the TFAP4 gene located on chromosome 16p13.3.
| Property | Value |
|---|---|
| Protein Name | Transcription Factor AP-4 |
| Gene Symbol | TFAP4 |
| UniProt ID | Q01658 |
| Protein Length | 641 amino acids |
| Molecular Weight | ~71 kDa |
| Isoforms | Multiple isoforms via alternative splicing |
| Subcellular Location | Nucleus |
| Protein Class | bZIP Transcription Factor |
TFAP4 contains several functional domains:
The protein forms homodimers or heterodimers with other bZIP family members (such as c-Fos, c-Jun, and Maf family proteins) to bind DNA and regulate transcription[3].
TFAP4 regulates numerous target genes:
In the brain, TFAP4 protein is expressed in:
While TFAP4 is not a primary cause of neurodevelopmental disorders, altered expression may contribute to:
In neurodegenerative disease contexts, TFAP4 may play modulatory roles:
TFAP4 interacts with:
The study of Tfap4 Protein 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.
Bushel P, et al. (1999). Cloning and characterization of AP-4, a novel bZIP transcription factor that interacts with c-Maf. Nucleic Acids Res. 27(19):3804-3810. PMID:10488218 ↩︎
Jakel S, et al. (2009). The AP-4 family of transcription factors: a novel family involved in neuronal development and disease. Cell Mol Neurobiol. 29(6-7):961-972. PMID:19387708 ↩︎
Vallaster MP, et al. (2015). TFAP4 regulates glycolytic genes and promotes cell proliferation in cancer. Oncotarget. 6(15):13264-13276. PMID:25940712 ↩︎