Probe:	Shox2 probe4
Probe preparation:	Antisense RNA

Structure	Level	Pattern	Image	Note
TS12: heart	Absent

Structure	Level	Pattern	Image	Note
TS13: sinus venosus	Present		1A	Expression initially detected in at E8.5 in a restricted pattern at junction formed by common cardinal vein and common atrial chamber, the sinus venosus.

Structure	Level	Pattern	Image	Note
TS17: sinus venosus	Present		1B	Cardiac looping and remodeling brings sinus venosus to right side of heart.
TS17: sinoatrial node	Present	Regionally restricted	1B	Expression gradually becomes restricted to dorsal wall of right atrium.
TS17: common atrial chamber right part venous valve	Present	Regionally restricted	1B	Expression extends to sinus valves originating from sinus node.

Structure	Level	Pattern	Image	Note
TS19: sinoatrial node	Present		1C	Expression specifically restricted to sinoatrial node (SAN) and venous layers of sinus valves.
TS19: right atrium venous valve	Present	Regionally restricted	1C	Expression specifically restricted to sinoatrial node (SAN) and venous layers of sinus valves.

Structure	Level	Pattern	Image	Note
TS20: sinoatrial node	Present		1D	Expression specifically restricted to sinoatrial node (SAN) and venous layers of sinus valves.
TS20: right atrium venous valve	Present	Regionally restricted	1D	Expression specifically restricted to sinoatrial node (SAN) and venous layers of sinus valves.

Structure	Level	Pattern	Image	Note
TS24: sinoatrial node	Present		1E	Expression specifically restricted to sinoatrial node (SAN) and venous layers of sinus valves.
TS24: right atrium venous valve	Present	Regionally restricted	1E	Expression specifically restricted to sinoatrial node (SAN) and venous layers of sinus valves.