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Fig. S1
Co-injection of Ptenb-mCherry G129E and Ptenb-mCherry Y138L did not rescue developmental defects in ptena-/-ptenb-/- zebrafish embryos.
Zebrafish embryos from a Tg(kdrl:eGFP) ptena+/-ptenb-/- incross were microinjected at the one-cell stage with mRNA encoding Ptenb-mCherry G129E and Ptenb-mCherry Y138L (300 pg each). At 3dpf the embryos were analyzed for the hyperbranching vessel phenotype by confocal live imaging on a Leica TCS-SPE microscope (top left panels; anterior to the left, 20x objective, 2µm z-stacks). Subsequently, the embryos were genotyped. Pictures show the trunk region distal from the urogenital opening of representative embryos; non-injected control embryos (NIC) were included for reference. Quantification of the number of embryos showing the typical ptena-/-ptenb-/- hyperbranching intersegmental vessel phenotype at 3dpf. Two-tailed Fisher’s Exact test indicated no statistically significant difference between NIC and G129E/Y138L-injected embryos (top right panel). The morphology of NIC embryos and G129E/Y138L-injected embryos was assessed at 4 dpf by brightfield microscopy (bottom left panels). Pictures show representative, genotyped embryos. Non-injected control embryos (NIC) were included for reference. Quantification of the embryos showing the typical ptena-/-ptenb-/- pleiptropic phenotype at 4dpf (bottom right panel). Two-tailed Fisher’s Exact test indicated no statistically significant difference between NIC and G129E/Y138L-injected embryos.