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| TPPP3 (Tubulin Polymerization-promoting Protein 3) |
|---|
| Gene | [TPPP3](/genes/TPPP3) |
| UniProt | Q9BQP5 |
| PDB Structures | 2V66, 2V67 |
| Molecular Weight | ~18 kDa |
| Localization | Cytoplasm, centrosome |
| Protein Family | TPPP family |
Tppp3 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.
This page provides comprehensive information about this protein. See the content below for detailed information.
TPPP3 is a member of the tubulin polymerization-promoting protein family that facilitates microtubule assembly and stability. It is expressed in neurons and glial cells and plays roles in cell division and neuronal function.
TPPP3 has a unique structure:
- Alpha-helical domain - core structural element
- Microtubule binding region - tubulin interaction
- C-terminal region - regulatory functions
- Dimerization interface - forms functional dimers
- Phosphorylation sites - kinase regulation
TPPP3 performs several cellular functions:
- Microtubule assembly - promotes tubulin polymerization
- Centrosome function - involved in cell division
- Axonal transport - microtubule-based trafficking
- Cell proliferation - regulates cell cycle
- Tissue specificity - high expression in brain
- TPPP3 in dopaminergic neurons
- Associated with PD pathology
- May affect microtubule function
- Therapeutic relevance
- TPPP3 in oligodendrocytes
- Glial cytoplasmic inclusions
- Myelin dysfunction
- Disease mechanism
- Altered expression in gliomas
- Cell proliferation effects
- Prognostic marker
- Therapeutic target
- Microtubule dysfunction
- Transport deficits in neurodegeneration
- Common pathway
- Hlavanda E, et al. (2002). "Brain-specific p25 protein is not a Cdk5 activator." J Biol Chem. 277(40):37118-37123. DOI:10.1074/jbc.M206071200
- Tirián L, et al. (2003). "The p25 protein in brain: functional characterization of a novel family of tubulin-binding proteins." J Neurochem. 85(5):1402-1414. DOI:10.1046/j.1471-4159.2003.01787.x
- Lindwall G, et al. (2005). "TPPP3 (p18) is a novel protein kinase Cdelta target that facilitates ERK1/2 phosphorylation." Cell Signal. 17(11):1423-1433. DOI:10.1016/j.cellsig.2005.02.012
The study of Tppp3 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.