Nhsl1b interacts genetically and physically with Scrib in the regulation of facial branchiomotor (FBM) neuron migration. (A,B) Wild-type (A) and double heterozygous nhsl1bfh131/+; scribrw468/+ zebrafish embryos (B) at 48 hours post-fertilization (hpf). Double heterozygotes have unmigrated FBM neurons in rhombomere (r)4, indicative of a strong genetic interaction between the two genes. (C) Histogram of phenotypes in the genotypic classes arising from a nhsl1bfh131/+ x scribrw468/+ cross. (D-G) Nhsl1b associates with Scrib and Psd95 (Dlg4). cDNA constructs were transfected into HEK293T cells as indicated. Whole cell lysates were immunoprecipitated (IP) and western-blotted (WB) with the indicated antibodies. Scale bar: 20 µm.
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