Source:http://linkedlifedata.com/resource/umls/id/C1153410
GO: Catalysis of energy-independent facilitated diffusion, mediated by passage of a solute through a transmembrane aqueous pore or channel. Stereospecificity is not exhibited but this transport may be specific for a particular molecular species or class of molecules. [GOC:mtg_transport, ISBN:0815340729, TC:1.-.-.-.-]