Description_x000D_ General description_x000D_ Potassium voltage-gated channel subfamily J member 2 (KCNJ2) is an inward-rectifying potassium channel. This tetrameric protein possesses two transmembrane helix domains (M1 and M2), an ion-selective P-loop between M1 and M2 and cytoplasmic amino and carboxy-terminal domains. The gene encoding KCNJ2 is localized on human chromosome 17q24.3._x000D_ Immunogen_x000D_ synthetic peptide corresponding to amino acids 392-410 of human Kir2.1 (with additional N-terminal cysteine). This epitope is identical in rabbit, bovine, pig, and guinea pig and highly homologous in rat, mouse and chicken._x000D_ Physical form_x000D_ Lyophilized from phosphate buffered saline, pH 7.4, 1% bovine serum albumin, and 0.025% sodium azide._x000D_ Disclaimer_x000D_ Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals._x000D_ Biochem/physiol Actions_x000D_ Potassium voltage-gated channel subfamily J member 2 (KCNJ2) has been shown to have a role in the differentiation and proliferation of bone marrow-derived macrophages (BMDM) in mice. It allows the inward movement of K+ into the cell and maintains its balance. Mutations in the KCNJ2 gene have been linked to Andersen-Tawil syndrome.