Antibody:	anti-Oct-3/4 (H-134; sc-9081)
Detection system:	Biotinylated secondary antibody/[Strept]avidin coupled to horseradish peroxidase

Structure	Level	Pattern	Image	Note
TS19: oral epithelium	Present	Single cells	1A	Expression is in a few cells in the molar epithelium.
TS19: oral region mesenchyme	Present	Single cells	1A	Expression is in a few cells in the molar mesenchyme.

Structure	Level	Pattern	Image	Note
TS21: molar epithelium	Present	Single cells	1B
TS21: molar mesenchyme	Present	Single cells	1B

Structure	Level	Pattern	Image	Note
TS22: inner enamel epithelium	Present	Single cells	1C
TS22: stellate reticulum	Present	Single cells	1C
TS22: molar	Present	Regionally restricted	1C	Expression is nuclear in some cells in the stellate reticulum and inner enamel epithelium.

Structure	Level	Pattern	Image	Note
TS24: inner enamel epithelium	Present		1D	Expression is in the cytoplasm.

Structure	Level	Pattern	Image	Note
TS24: molar epithelium	Present		2A , 2A'
TS24: molar mesenchyme	Present		2A , 2A'

Structure	Level	Pattern	Image	Note
TS26: molar	Present	Regionally restricted	2B' , 2B	Expression is in the odontoblasts in the cusp tip.
TS26: stellate reticulum	Present	Single cells	2B' , 2B	Expression is mostly absent.
TS26: stratum intermedium	Present	Single cells	2B' , 2B	Expression is mostly absent.

Structure	Cell Type	Level	Pattern	Image	Note
TS27: molar	odontoblast	Present	Regionally restricted	2C' , 2C	Expression is in odontoblasts in the cusp tip to the intercuspal region.
TS27: molar	ameloblast	Present	Regionally restricted	2C' , 2C	Expression is in ameloblasts in the cusp tip.

Structure	Level	Pattern	Image	Note
TS28: molar	Present	Regionally restricted	2D' , 2D	Expression is in the crown except for the cervical loop.
TS28: cervical loop	Absent		2D' , 2D

Structure	Level	Pattern	Image	Note
TS25: inner enamel epithelium	Present		4Aa , 4Aa'
TS25: molar epithelium	Present		4Aa , 4Aa'
TS25: molar mesenchyme	Present		4Aa , 4Aa'