Kif3C 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.
{{infobox .infobox-protein}}
| Property | Value |
|---|---|
| Protein Name | Kinesin Family Member 3C |
| Gene | KIF3C |
| UniProt ID | Q9NS87 |
| PDB ID | 3B8U |
| Molecular Weight | ~80 kDa |
| Subcellular Localization | Neuronal axons, dendrites, cytoplasm |
| Protein Family |
This page provides comprehensive information about the subject's role in neurodegenerative diseases. The subject participates in various molecular pathways and cellular processes relevant to Alzheimer's disease, Parkinson's disease, and related conditions.
| Kinesin-2 family |
| Expression | Brain, enriched in neurons |
KIF3C is a member of the kinesin-2 family of motor proteins, which function as heterotrimeric complexes consisting of two motor subunits (KIF3A/KIF3B/KIF3C) and one non-motor subunit (KAP3). KIF3C contains an N-terminal motor domain with microtubule-binding activity, a coiled-coil domain for dimerization, and a C-terminal cargo-binding tail domain [1].
Unlike KIF3A and KIF3B, which are ubiquitously expressed, KIF3C shows neuron-specific expression, making it particularly important for neuronal function [2].
The kinesin-2 family mediates anterograde transport along microtubules, moving cargo from the cell body toward the synaptic terminal. KIF3C plays essential roles in:
Synaptic Vesicle Transport: Facilitates the transport of synaptic vesicle precursors from the cell body to presynaptic terminals [3]
Dendritic Cargo Trafficking: Mediates transport of membrane proteins and organelles in dendritic compartments, supporting synaptic plasticity
Axon Guidance: Contributes to proper axonal pathfinding during development through transport of guidance cue receptors
Neurotrophin Transport: Transports brain-derived neurotrophic factor (BDNF) vesicles and signaling endosomes along axons
Synapse Formation: Involved in the delivery of synaptic components during synaptogenesis
KIF3C dysfunction has been implicated in several neurodegenerative conditions:
Understanding KIF3C function may lead to therapeutic strategies:
The study of Kif3C 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.