Dync1Li2 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 | Dynein Cytoplasmic 1 Light Intermediate Chain 2 |
| Gene | DYNC1LI2 |
| UniProt ID | Q8IWV1 |
| PDB ID | 5EJ8 |
| Molecular Weight | ~50 kDa |
| Subcellular Localization | Cytoplasm, microtubules, neuronal axons |
| Protein Family | Dynein light in |
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.
termediate chain family |
| Expression | Neuronal tissue, enriched in brain |
DYNC1LI2 (Dynein Cytoplasmic 1 Light Intermediate Chain 2) is a ~450 amino acid protein belonging to the dynein light intermediate chain family. The protein consists of an N-terminal cargo-binding domain and a C-terminal dynein heavy chain interaction domain [1]. DYNC1LI2 shares structural similarity with DYNC1LI1 and can form both homodimers and heterodimers, allowing for functional diversification of the dynein complex [2].
The protein contains a P-loop NTP-binding domain typical of the SIMIBI family of NTP-binding proteins, enabling ATP-dependent conformational changes required for dynein motor activity [3].
The cytoplasmic dynein-1 complex is the major minus-end-directed microtubule motor in eukaryotic cells, responsible for retrograde transport from the cell periphery toward the cell body. DYNC1LI2 serves as a crucial adaptor subunit that:
Cargo Binding and Regulation: Links diverse cargoes to the dynein motor complex, including membranous organelles, protein complexes, and RNA granules [4]
Neuronal Transport: Facilitates retrograde transport in neuronal axons, delivering signaling endosomes, synaptic vesicle precursors, and autophagosomes from synapses back to cell bodies for degradation or recycling [5]
Dynein Complex Assembly: Participates in cytoplasmic dynein-1 complex assembly, stabilizing the motor complex and modulating its activity [6]
Mitosis and Cell Division: Involved in mitotic spindle positioning and organelle transport during cell division
Dysregulation of axonal transport is a hallmark feature of many neurodegenerative diseases. DYNC1LI2 has been implicated in several disease mechanisms:
Targeting dynein-mediated transport represents a potential therapeutic strategy:
The study of Dync1Li2 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.