Nestin is a type VI intermediate filament protein encoded by the NES gene. It is primarily expressed in neural stem and progenitor cells during development and in adult neurogenic regions. [1] Nestin serves as a structural scaffold for neural progenitor cells during proliferation and differentiation, and plays important roles in cytoskeletal organization, cell signaling, and tissue repair following CNS injury. [2]
Nestin is a type VI intermediate filament protein characterized by a highly conserved central rod domain flanked by unique N-terminal and C-terminal domains. [3] The protein contains multiple phosphorylation sites that regulate its assembly and disassembly, particularly during the cell cycle. [4] Nestin's structure differs from other IF proteins, with a shorter rod domain and highly charged terminal domains that mediate protein-protein interactions. [5]
| Attribute | Value |
|---|---|
| Gene | NES |
| UniProt ID | P48681 |
| Molecular Weight | ~177 kDa |
| Subcellular Localization | Cytoplasm, intermediate filaments |
| Protein Family | Type VI intermediate filament protein |
Nestin serves as a structural scaffold for neural progenitor cells during proliferation and differentiation. [2:1]
Co-assembles with vimentin and other intermediate filaments in developing neurons. [6]
Interacts with various kinases and phosphatases, including PKC and PP2A, to regulate stem cell fate decisions. [7]
Activated in reactive astrocytes following CNS injury and neurodegeneration. [8]
Nestin plays complex roles in AD pathogenesis: [9]
Nestin involvement in PD: [11][12]
Nestin alterations in ALS: [13]
Nestin is activated following brain injury and may contribute to repair: [14]