| Protein Name |
Nudel |
| Gene |
NDEL1 |
| UniProt |
Q9GZI8 |
| Molecular Weight |
44 kDa |
| Length |
389 amino acids |
| Subcellular Localization |
Cytoplasm, Centrosome, Cytoskeleton |
| Protein Family |
coiled-coil domain proteins |
Nudel is a cytoskeletal protein encoded by the NDEL1 gene. It is the mammalian ortholog of Drosophila Nudel and plays essential roles in neuronal migration, cell division, and brain development. Nudel functions as a scaffold protein that interacts with LIS1 and cytoplasmic dynein to regulate microtubule-dependent processes.
Nudel is a 44 kDa protein with several key structural features:
- N-terminal region — contains binding sites for LIS1
- Coiled-coil domains — mediate dimerization and protein-protein interactions
- C-terminal region — interacts with dynein heavy chain
- Nuclear localization signal — suggests potential nuclear functions
Nudel is crucial for proper neuronal migration during cortical development:
- Forms a complex with LIS1 (PAFAH1B1) and cytoplasmic dynein
- Regulates microtubule organization and dynamics
- Enables nucleokinesis — nuclear movement during migration
- Essential for cortical layer formation
During mitosis, Nudel:
- Associates with the centrosome and spindle apparatus
- Regulates spindle orientation in dividing neural progenitors
- Ensures proper chromosome segregation
- Controls centriole duplication
In mature neurons, Nudel:
- Associates with dynein-dynactin complex
- Facilitates retrograde axonal transport
- Regulates organelle positioning
- Supports synaptic protein turnover
Nudel dysfunction contributes to:
- Schizophrenia — altered expression and genetic associations
- Bipolar disorder — neurodevelopmental hypothesis
- Lissencephaly — interactions with LIS1 pathway
Nudel's microtubule functions are relevant to:
- Alzheimer's disease — microtubule stabilization deficits
- Parkinson's disease — protein transport impairment
- Huntington's disease — dynein-mediated transport disruption
Current research focuses on:
- Microtubule-stabilizing agents — to compensate for transport deficits
- Dynein-dynactin activators — enhance retrograde transport
- LIS1 pathway modulators — developmental therapeutic approaches
- Sasaki et al., Nudel and neuronal migration (2005)
- Youn et al., NDEL1 in psychiatric disorders (2009)
- Bradshaw et al., Nudel-dynein complex (2013)
- Sasaki et al., NDEL1 is essential for neurogenesis (2005)
- Niethammer et al., NDEL1 links LIS1 to dynein (2000)
- Bradshaw et al., NDEL1 and dynein complex in neuronal migration (2013)