TGFBR2 and infection: Infection with AAV2/9-BI30-EF1α-DIO-Tgfbr2-3XFLAG-P2A-DsRed-WPREs[Virus(Tgfbr2)] resulted in EC-specific overexpression of the Tgfbr2 protein (Figure 6—figure supplement 1I), increased the expression of EndoMT markers (Figure 6F, Figure 6—figure supplement 1J) and the generation of E-pericytes (Figure 6G and H).