Gluk3 (Kar3) Neurons is an important cell type in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
Glutamate ionotropic kainate receptor subunit 3 (GluK3), also known as KAR3 or GRIK3, is a low-affinity kainate receptor subunit that plays distinct roles in synaptic transmission and neuronal excitability throughout the central nervous system. Unlike the high-affinity GluK5 subunit, GluK3-containing receptors have different pharmacological and physiological properties that make them unique targets for neurological research. [1]
The GRIK3 gene (located on chromosome 1p34) encodes the GluK3 protein, which contains: [2]
GluK3 can form: [3]
| Region | Expression Pattern |
|---|---|
| Hippocampus | CA1-CA3 pyramidal neurons, dentate gyrus granule cells |
| Cerebral Cortex | Layer II-V pyramidal neurons, interneurons |
| Cerebellum | Granule cells, Purkinje cells |
| Thalamus | Relay neurons |
| Striatum | Medium spiny neurons |
| Olfactory Bulb | Mitral cells, tufted cells |
GluK3 contributes to:
Agonists:
Antagonists:
The study of Gluk3 (Kar3) Neurons 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.