Biaxial mechanical data from the ascending aortas of Tgfb1+/− (red diamonds), Tgfb2+/− (yellow squares), Tgfb3+/− (blue triangles), wild-type (WT; black circles), and elastase infused wild-type (Elastase; green ☓) mice. As a subset of the total biaxial mechanical data, (a-c,e) are reported at a single axial stretch ratio and (d,f) at a single pressure of 100 mmHg. Experimental data are shown as mean values ± the standard error of the mean.