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Profilin-2 (PFN2)
- Target
- PFN2
- Molecular classification
- Actin-binding protein, Cytoskeletal regulatory protein, Other: Profilin family
01
Overview
Profilin-2 (PFN2) is a member of the profilin family of small actin-binding proteins that regulate cell cytoskeleton dynamics by binding actin monomers, affecting their polymerization and reorganization. PFN2 also interacts with polyproline-rich proteins and phosphoinositides, modulating endocytosis, neurotransmitter release, and vesicle trafficking in neurons, where it is predominantly expressed. PFN2 plays a role in iron metabolism by affecting iron pools and homeostasis, as revealed by knockout models. Although PFN2 is essential for several cellular processes, especially within the CNS, it is not currently considered a druggable therapeutic target or receptor, and no selective modulators are available for clinical or research use[1][2][3].
- Other names
- Profilin-2Profilin IIPFN2D3S1319EPFL
02
Biological functions
Actin polymerization/dynamics regulationEndocytosis regulationCell shape and motilityNeurotransmitter release/modulationVesicle traffickingIron homeostasis regulation
03
Disease associations
Neurodegenerative disease: Implicated in brain iron accumulation and potentially linked to behavioral and neural functionOther: Abnormalities may lead to altered synaptic function and locomotor activity in animal models
04
Safety considerations
Essential for CNS function: In animal models, loss of PFN2 impairs neural function, may cause behavioral deficits, and affects iron metabolismWidespread effects: As a core cytoskeletal regulator, modulation could impact fundamental cellular processes
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