(A, B) Representative confocal images of an isolated cell (A) or cell at cluster periphery (B) retracting, expressing eGFP–MAP4K4_WT, showing MAP4K4 localization at retraction fibers and at the base of the retraction in A431 cells. (C) Representative confocal images of confluent MDCK cells expressing eGFP–MAP4K4_WT, KD, or ΔCNH. Staining of p120-catenin indicates cell–cell junctions. (D) Relative intensity recovery rates of A431 cells expressing E-cadherin–mRuby, treated with DMSO or GNE-495 at 1.0 μM. (E) Relative intensity recovery rates of A431 cells expressing E-cadherin–mRuby, control or expressing eGFP–MAP4K4_WT.