Probe:	En-1 cDNA
Probe preparation:	Antisense labelled with S35 RNA

Structure	Level	Pattern	Image	Note
TS22: incisor	Absent		S1A En1 anterior

Structure	Level	Pattern	Image	Note
TS22: incisor	Absent		S1A En1 (center)

Structure	Level	Pattern	Image	Note
TS22: incisor	Absent		S1A En1 posterior

Structure	Level	Pattern	Image	Note
TS24: incisor enamel organ	Present	Regionally restricted	6M	Limited expression anteriorly in differentiating ameloblasts at the limit of labial and mesial.

Structure	Level	Pattern	Image	Note
TS24: incisor enamel organ	Present	Regionally restricted	6N	No expression more posteriorly.

Structure	Level	Pattern	Image	Note
TS24: incisor enamel organ	Present	Regionally restricted	6O	No expression more posteriorly.

Structure	Level	Pattern	Image	Note
TS24: incisor enamel organ	Present	Regionally restricted	6P	No expression more posteriorly.

Structure	Level	Pattern	Image	Note
TS27: incisor enamel organ	Present	Regionally restricted	7G	Expression only detected anteriorly at border between labial and medial side.

Structure	Level	Pattern	Image	Note
TS27: incisor enamel organ	Present	Regionally restricted	7H	Expression in non-differentiated inner enamel epithelium in more posterior part of incisor.

Structure	Level	Pattern	Image	Note
TS27: incisor enamel organ	Present	Regionally restricted	7I	Expression only on mesial side.
TS27: cervical loop	Absent		7I	No expression in labial cervical loop.