Antibody:	anti-connexin 43 (AB1727)
Detection system:	Alexa Fluor 488

Structure	Level	Pattern	Image	Note
TS25: uterine horn	Ambiguous		2B , 2C	Author report expression not specifically detected in endometrium and myometrium.

Structure	Level	Pattern	Image	Note
TS27: uterine horn	Ambiguous		2F , 2E	Author report expression not specifically detected in endometrium and myometrium.

Structure	Level	Pattern	Image	Note
TS27: uterine horn	Ambiguous		2I , 2H	Author report expression not specifically detected in endometrium and myometrium.

Structure	Level	Pattern	Image	Note
TS28: myometrium	Present	Regionally restricted	2K , 2L	Expression localized as dots on borders among a few smooth muscle cells by P15.

Structure	Level	Pattern	Image	Note
TS28: myometrium inner circular smooth muscle layer	Present	Spotted	2O , 2N	Expression localized as dots on membranes of smooth muscle cells in circular muscle layer.
TS28: myometrium outer longitudinal smooth muscle layer	Present	Spotted	2N , 2O	Expression localized as dots at junctions of junits of smooth muscle cells in longitudinal muscle layer.