Probe:	flk-1 probe5
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS22: brain blood vessel	Present		5B1/B2
TS22: lateral ventricle choroid plexus	Present		5B1/B2
TS22: meninges	Present		5B1/B2
TS22: telencephalon	Present	Regionally restricted	5B1/B2	No expression in cerebral neuroepithelium.
TS22: corpus striatum	Absent		5B1/B2
TS22: thalamus	Ambiguous	Regionally restricted	5B1/B2	No expression in posterior thalamus,.
TS22: nose	Absent		5B1/B2	No expression olfactory anlage.

Structure	Level	Pattern	Image	Note
TS22: dorsal aorta	Present	Regionally restricted	5E1/E2	Expression in endothelial lining of aorta, vena cava, mesenteric and umbilical blood vessls.
TS22: mesenteric artery	Present	Regionally restricted	5E1/E2	Expression in endothelial lining of aorta, vena cava, mesenteric and umbilical blood vessls.
TS22: mesenteric vein	Present	Regionally restricted	5E1/E2	Expression in endothelial lining of aorta, vena cava, mesenteric and umbilical blood vessls.
TS22: umbilical artery	Present	Regionally restricted	5E1/E2	Expression in endothelial lining of aorta, vena cava, mesenteric and umbilical blood vessls.
TS22: umbilical vein	Present	Regionally restricted	5E1/E2	Expression in endothelial lining of aorta, vena cava, mesenteric and umbilical blood vessls.
TS22: vena cava	Present	Regionally restricted	5E1/E2	Expression in endothelial lining of aorta, vena cava, mesenteric and umbilical blood vessls.
TS22: alimentary system vascular element	Present	Regionally restricted	5E1/E2	Expression in blood vessels of submucosa and muscularis underlying intestinal epithelia.