Inward Rectifier Potassium Channel 2

**Semantic type:** Amino Acid, Peptide, or Protein

**Definition:** Inward rectifier potassium channel 2 (427 aa, ~48 kDa) is encoded by the human KCNJ2 gene. This protein plays a role in the transport of potassium ions, which regulates resting membrane potential and cell excitability.

**Synonyms:** - Cardiac Inward Rectifier Potassium Channel - IRK-1 - Inward Rectifier K(+) Channel Kir2.1 - Inward Rectifier K+ Channel KIR2.1 - Inwardly-Rectifying Potassium Channel Subfamily J Member 2 - KCNJ2 - Kir2.1 - Potassium Channel, Inwardly Rectifying Subfamily J Member 2 - Potassium Inwardly Rectifying Channel Subfamily J Member 2 - hIRK1