Downregulation of genes involved in vascular smooth muscle differentiation and contraction in Y/T KO (YAP/TAZ [yes-associated protein 1/WW domain containing transcription regulator 1] knockout) mice. RNA sequencing was performed on aortae from Ctrl (control) and Y/T KO mice. A, Protein Analysis Through Evolutionary Relationships (PANTHER) overrepresentation test and PANTHER GO-slim cellular component of significantly downregulated genes with fold enrichment in black and false discovery rate in red. B, Confirmation of selected smooth muscle markers by RT-qPCR (Ctrl, n=5–6; Y/T KO, n=5–6). C, Quantification of Western blot analysis of SM-MHC (smooth muscle α-actin and myosin heavy chain) and their representative blots to the right. Targets were normalized to the total protein (Ctrl, n=6–9; Y/T KO, n=6–9). D, Reverse transcription-quantitative polymerase chain reaction analysis of Myocd, Rock1, Avpr1, and Htr2a mRNA expression (Ctrl, n=5–6; Y/T KO, n=6). E, Western blot analysis of ROCK1 (Rho kinase 1; Ctrl, n=6; Y/T KO, n=6). All data are presented as mean±SEM. FC indicates fold change; FDR, false discovery rate; and KO, knockout.