Abstract:32Dominant mutations of Gata4, an essential cardiogenic transcription factor (TF), cause 33 outflow tract (OFT) defects in both human and mouse. We investigated the molecular 34 mechanism underlying this requirement. Gata4 happloinsufficiency in mice caused OFT 35 defects including double outlet right ventricle (DORV) and conal ventricular septum 36 defects (VSDs). We found that Gata4 is required within Hedgehog (Hh)-receiving second 37 heart field (SHF) progenitors for normal OFT alignment. Increased P… Show more
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