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Cellular localization of endogenous Cx43 in lymphocytes with active BTK or ITK. Immunofluorescence was performed to visualize Cx43 in (A) Daudi cells with and without BTK activation using the α-IgM antibody or (B) Jurkat cells with and without ITK activation using the α-CD3/α-CD28 antibodies (Green, Cx43; Red, BTK/pBTK or ITK/pITK; Blue, DAPI; white arrows show colocalization with Cx43).
