Rectangular arrays of particles on freeze-cleaved plasma membranes are not gap junctions.
D000818:Animals; D002462:Cell Membrane; D003964:Diaphragm / Q000166:cytology; D005613:Freeze Etching; D007365:Intercellular Junctions; D008854:Microscopy, Electron; D009132:Muscles / Q000166:cytology*; D009210:Myofibrils; D051381:Rats; D012508:Sarcolemma