Probe:	Neuronatin cDNA1
Probe preparation:	Antisense labelled with digoxigenin RNA

Structure	Level	Pattern	Image	Note
TS13: rhombomere 3	Present		4A
TS13: oral region	Present	Regionally restricted	4A	Expression is in the endodermal floor of Seessel's pocket next to the oral plate and the floor of Rathke's pouch.

Structure	Level	Pattern	Image	Note
TS14: Rathke's pouch	Strong		4B
TS14: rhombomere 3	Strong		4B
TS14: rhombomere 5	Strong		4B
TS14: oral region	Present	Regionally restricted	4B	Expression is in the endodermal floor of Seessel's pocket next to the oral plate and the floor of Rathke's pouch.

Structure	Level	Pattern	Image	Note
TS13: rhombomere 3	Present		4C

Structure	Level	Pattern	Image	Note
TS13: oral region	Present	Regionally restricted	4D	Expression is in the endodermal floor of Seessel's pocket next to the oral plate and the floor of Rathke's pouch. Weak in surrounding mesodermal cells and the presumed oral plate.

Structure	Level	Pattern	Image	Note
TS13: oral region	Present	Regionally restricted	4E	Expression is in the endodermal floor of Seessel's pocket next to the oral plate and the floor of Rathke's pouch.

Structure	Level	Pattern	Image	Note
TS15: rhombomere 3	Present	Regionally restricted	4F	Expression is in the ventral ventricular zone.
TS15: head mesenchyme derived from neural crest	Present		4F
TS15: paraxial mesenchyme	Present		4F
TS15: rhombomere 5	Present		4F
TS15: somite	Present		4F
TS15: neural tube lateral wall	Present	Regionally restricted	4F	Expression is in the ventral part of the undifferentiated ventricular zone.
TS15: branchial arch mesenchyme derived from neural crest	Strong		4F

Structure	Level	Pattern	Image	Note
TS17: branchial arch mesenchyme derived from neural crest	Strong		4G
TS17: rhombomere ventricular layer	Strong		4G
TS17: neural tube lateral wall	Present	Regionally restricted	4G	Expression is in the ventral part of the undifferentiated ventricular zone and in the caudal part.
TS17: diencephalon	Present	Regionally restricted	4G	Expression is ventral.
TS17: eye	Present	Regionally restricted	4G	Expression is in the optic chiasma.
TS17: telencephalon	Present	Regionally restricted	4G	Expression is in the intermediate zone.
TS17: limb mesenchyme	Present		4G
TS17: midbrain floor plate	Present		4G
TS17: paraxial mesenchyme	Present		4G
TS17: somite	Present		4G