channel protein
http://purl.obolibrary.org/obo/PR_000044676
A protein that has channel activity. Channel proteins enable energy-independent facilitated diffusion, mediated by passage of a solute through a transmembrane aqueous pore or channel. [ http://amigo.geneontology.org/amigo/term/GO:0015267 PRO:XQ ]
Synonyms: pore class transporter protein, channel/pore class transporter protein, pore protein, nonselective channel protein, fam:chan, channel-forming toxin protein