KCNS2 (Potassium Voltage-Gated Channel Subfamily S Member 2) encodes another modulatory Kv channel subunit expressed primarily in the nervous system. Similar to KCNS1, KCNS2 forms heteromeric channels that modulate neuronal excitability.
| Property | Value |
|---|---|
| Gene Symbol | KCNS2 |
| Gene Name | Potassium Voltage-Gated Channel Subfamily S Member 2 |
| Aliases | KV9.2 |
| Chromosomal Location | 8q22.3 |
| NCBI Gene ID | 3785 |
| OMIM | 603959 |
| UniProt | Q9ND82 |
| Ensembl | ENSG00000166888 |
KCNS2 encodes the Kv9.2 subunit, which functions as a modulatory component of voltage-gated potassium channels. It does not form functional homomeric channels but assembles with other Kv subunits to generate diverse channel properties [1].
KCNS2 primarily co-assembles with:
Neuronal Excitability: Modulates action potential properties and firing patterns
Synaptic Transmission: Influences presynaptic and postsynaptic properties
Hormone Release: Affects calcium signaling in endocrine cells
KCNS2 shows widespread but specific expression:
KCNS2 is being explored as a drug target:
KCNS2 encodes a neuronal voltage-gated potassium channel modulatory subunit with roles in excitability and synaptic function. Further research may reveal disease associations and therapeutic opportunities.