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Electrophoresis agarose gel of PCR‐amplified Cx43 and neo‐sequences of DNA extracted of tails from Cx43+/– and Cx43+/+ mice. Bands corresponding to the Cx43 and neo‐sequences are clearly visible after ethydium bromide staining. MW, molecular weight; +/+, Cx43 wild‐type; +/–, Cx43 heterozygous.
