CAMSAP1 Protein (Calmodulin-Regulated Spectrin-Associated Protein 1) is a microtubule-binding protein that plays a crucial role in neuronal morphogenesis, axonal maintenance, and intracellular transport. It belongs to the CAMSAP family of proteins that regulate microtubule dynamics and organization.
| Attribute |
Value |
| Protein Name |
Calmodulin-Regulated Spectrin-Associated Protein 1 |
| Gene |
CAMSAP1 |
| UniProt ID |
Q8N7G2 |
| Molecular Weight |
~175 kDa |
| Subcellular Localization |
Microtubules, Neuronal axons and dendrites |
| Protein Family |
CAMSAP family |
| Associated Diseases |
Neurodevelopmental disorders, neurodegenerative diseases |
CAMSAP1 contains:
- N-terminal calmodulin-binding domain
- CAMSAP homology domain (CHD) — microtubule binding
- C-terminal coiled-coil domains — oligomerization
¶ Microtubule Binding and Regulation
CAMSAP1 binds to:
- Non-centrosomal microtubules — in neurons
- Axonal microtubules — for transport
- Dendritic microtubules — for local translation
- Axon specification and growth
- Dendrite branching
- Synapse formation
- Neuronal polarity establishment
- Binds to spectrin cytoskeleton
- Associates with +TIP proteins (EB1, EB3)
- Modulates microtubule severing proteins (katanin)
- Altered microtubule regulation
- May affect tau pathology
- Impaired axonal transport
- May influence alpha-synuclein transport
- Linked to mitochondrial trafficking defects
CAMSAP1 modulators could potentially treat:
- Neurodegenerative diseases
- Axonal transport disorders
- CAMSAP family proteins in microtubule organization
- CAMSAP1 and neuronal polarity
- Microtubule regulation in neurons