Live primary mouse cortical neurons at day in vitro 11 (D11) expressing EGFP-LifeAct and pLKO-shRNA-TurboRFP targeting Enah, Evl, or non-targeting (n.t.) as indicated. Left: segment of dendrite with overlay of brightfield and intensity-coded LUT of EGFP-LifeAct. Right: EGFP-LifeAct alone. Scale bar = 10 µm. 5 s interval, 5 min duration, 10 fps. See also Fig. 1 and Fig. S2.