Fig. S2
Creation of a hey2 transgenic reporter line. (A) Schematic representation of hey2 enhancer (epigenetic conserved region 21) located 24kb upstream of hey2 locus used to create Tg(epicon21:EGFP) . (B-G) Confocal images of Tg(epicon21:EGFP) and Tg(myl7:mCherry-RAS) at 48 hpf (B), 72 hpf (C, D) and 96 hpf (E, G; F with MF20). (H) Schematic methodology of internal epitope tagging of V5 into the hey2 locus with corresponding sequence of tag-specific PCR fragments. (I) Immunofluorescence of Tg(hey2-V5) internal epitope tagging with Tg(myl7:mCherry-RAS) at 30 hpf comparing Hey2 expression (green) with Myl7 (red). Scale bars 50 μm. OFT, outflow tract; V, ventricle and A, atrium; Asterisk indicates atrioventricular canal. Arrowheads mark epicon21+ OFT region (B-F) and ventricular myocardium (G). |
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Stage Range: | Long-pec to Day 4 |