A voltage-gated ion channel protein that has potassium channel activity. A potassium channel enables the facilitated diffusion of a potassium ion (by an energy-independent process) involving passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism. [ PRO:XQ http://amigo.geneontology.org/amigo/term/GO:0005267 ]

Synonyms: fam:K_chan

This is just here as a test because I lose it