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Electrophoretic mobility of Cx43. SDS-PAGE analysis of WT and phospho-mimetic isoforms of the Cx43CT indicating shifts in electrophoretic mobility. Substitutions are listed along with the kinase responsible for the phosphorylation of Cx43. The soluble Cx43CT is shown in A along with a summary of the soluble CT results in B. The membrane-tethered TM4-Cx43CT is shown in C. P0, P1, and P2 SDS-PAGE mobility shifts are typical of full-length, endogenously phosphorylated Cx43.
