Figure 6. ZDHHC14 palmitoylates Kv1-type potassium channels in hippocampal neurons.
(A) Hippocampal neurons were transduced with the indicated lentiviruses on DIV9 and harvested on DIV16 to assess Kv1 channel palmitoylation by ABE. Palmitoyl-proteins (isolated by ABE; left panels) and total protein levels (in parent lysates; right panels) were assessed by western blotting with the indicated antibodies. (B) Quantified palmitoyl:total levels of Kv1.1, Kv1.2, and Kv1.4 from A, normalized to the control virus condition (Kv1.1: unpaired Student’s t-test ***p=0.0003, N = 10, 95% CI [0.18, 0.52]; Kv1.2: unpaired Student’s t-test *p=0.024, N = 10, 95% CI [0.047, 0.58]; Kv1.4: Mann Whitney test ****p<0.0001, N = 11, U = 0.0). (C) Quantified total levels of Kv1.1 (left), Kv1.2 (middle), and Kv1.4 (right) from A, normalized to the control virus condition (Kv1.1: unpaired Student’s t-test *p=0.019, N = 10, 95% CI [0.044, 0.43]; Kv1.2: unpaired Student’s t-test **p=0.0058, N = 9, 95% CI [0.087, 0.43]; Kv1.4: unpaired Student’s t-test ****p<0.0001, N = 11, 95% CI [0.25, 0.49]). Uncropped western blot images are in Figure 6—figure supplement 1.

