Antibody:

anti-WNT10b (sc-6546)

Structure	Level	Pattern	Image	Note
TS22: lower jaw molar epithelium	Present		4A
TS22: enamel organ	Present	Regionally restricted	4A	Expression is stronger on the buccal aspect.
TS22: lower jaw molar mesenchyme	Weak		4A
TS22: cap stage tooth	Present	Regionally restricted	4A

Structure	Level	Pattern	Image	Note
TS22: olfactory epithelium	Very strong		4B

Structure	Level	Pattern	Image	Note
TS21: lower jaw molar epithelium	Present	Regionally restricted	4C	Expression is mainly at the tip of the bud.
TS21: lower jaw molar mesenchyme	Present	Regionally restricted	4C	Expression is in the condensing mesenchyme.

Structure	Level	Pattern	Image	Note
TS22: cervical loop	Present		4D
TS22: lower jaw molar epithelium	Present		4D
TS22: enamel organ	Present	Regionally restricted	4D	Expression is stronger on the buccal aspect.
TS22: lower jaw molar mesenchyme	Weak		4D
TS22: cap stage tooth	Present	Regionally restricted	4D
TS22: primary enamel knot	Absent		4D

Structure	Level	Pattern	Image	Note
TS23: cervical loop	Present		4E
TS23: lower jaw molar	Present		4E
TS23: enamel organ	Present	Regionally restricted	4E	Expression is stronger on the buccal aspect.
TS23: cap stage tooth	Present	Regionally restricted	4E
TS23: lower jaw molar mesenchyme	Weak		4E
TS23: primary enamel knot	Absent		4E

Structure	Level	Pattern	Image	Note
TS25: cervical loop	Strong		4F
TS25: lower jaw molar	Present	Regionally restricted	4F
TS25: secondary enamel knot	Absent		4F

Structure	Level	Pattern	Image	Note
TS26: inner enamel epithelium	Strong	Graded	4G	Expression is in preameloblasts and decreases towards the tip of the cusp except for the basal pole of the preameloblasts.
TS26: lower jaw molar enamel organ	Present	Regionally restricted	4G
TS26: stratum intermedium	Present		4G
TS26: late bell stage tooth	Present	Regionally restricted	4G
TS26: lower jaw molar mesenchyme	Weak	Regionally restricted	4G	Except for the tip of the main cusp, which was negative.