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. 2016 Feb 15;212(4):449–463. doi: 10.1083/jcb.201509023

Figure 1.

Figure 1.

NLG1 is required for cofilin phosphorylation. (A) Western blots of whole brain lysate of NLG1 KO and WT mice with indicated antibodies. (B) Summary graphs of A showing a significant reduction in p-cofilin but not total cofilin in NLG1 KO compared with WT mice. (C) Cultured hippocampal neurons infected with NLG1-shRNA or control mismatch shRNA and stained for p-cofilin. Yellow arrows indicate infected neurons (green) and white arrows indicate noninfected neurons. Note reduced p-cofilin intensity in NLG1-shRNA–infected neuron compared with noninfected neuron (bottom). No differences between mismatch shRNA-infected neurons and noninfected neurons (top). (D) Summary graph of C showing significantly reduced p-cofilin in NLG1-shRNA–treated neurons. (E) Cultured hippocampal neurons of NLG1 KO and WT costained for spine (phalloidin) and p-cofilin (circled). (F) Summary graphs of E showing significantly decreased p-cofilin in NLG1 KO compared with WT neurons, without changes in spine number. (G) Cultured hippocampal neurons of NLG1 KO transfected with HA-NLG1 and costained for spine (phalloidin, circled) and p-cofilin. Yellow arrows indicate infected neurons; white arrows indicate noninfected neurons. (H) Summary graph of G showing significantly increased p-cofilin in HA-NLG1–transfected NLG1 KO compared with untransfected neurons. (I) Schematic graph of KCl (30 mM) treatment and recovery. (J) Western blots of protein lysate of WT brain slices immediately or 1 h after KCl treatment. (K) Summary graph of J showing a transient reduction in p-cofilin immediately after KCl treatment and a sustained increase in p-cofilin after the 1-h recovery period in WT brain slices. Ctrl, control. (L) Western blots of protein lysate of NLG1 KO brain slices immediately or 1 h after KCl treatment. (M) Summary graph of L showing significantly reduced p-cofilin right after KCl treatment and no significant increase in p-cofilin after the 1-h recovery period in NLG1 KO brain slices. (N) Western blots of protein lysate of WT brain slices pretreated with MRK (10 nM) followed by the KCl treatment showing a transient decrease in p-cofilin right after the KCl treatment. (O) Summary graph of N showing a transient reduction in p-cofilin after KCl treatment, but no increase in p-cofilin above the baseline after the 1-h recovery period in the presence of MRK in WT slices. n.s., not significant. *, P < 0.05; **, P < 0.01; ***, P < 0.001.