The cell-to-cell channel of gap junctions.
D000818:Animals; D002450:Cell Communication; D007365:Intercellular Junctions / Q000502:physiology* / Q000648:ultrastructure; D008565:Membrane Proteins / Q000502:physiology; D010766:Phosphorylation; D011494:Protein Kinases / Q000378:metabolism
D008565:Membrane Proteins; D011494:Protein Kinases