Antibody:	anti-SDC4 (ab286154)
Detection system:	Secondary antibody coupled to horseradish peroxidase

Structure	Level	Pattern	Image	Note
TS26: inner enamel epithelium	Very strong		1A , 1B
TS26: oral epithelium	Very strong		1A , 1B
TS26: outer enamel epithelium	Very strong		1A , 1B
TS26: stellate reticulum	Very strong		1A , 1B
TS26: late bell stage tooth	Present		1B , 1A
TS26: molar	Present		1B , 1A
TS26: molar mesenchyme	Present	Regionally restricted	1A , 1B	Expression is in mesenchymal cells adjacent to the cervical loop structure.

Structure	Cell Type	Level	Pattern	Image	Note
TS27: inner enamel epithelium	preameloblast	Present		1D , 1C
TS27: stellate reticulum	preameloblast	Present		1D , 1C

Structure	Cell Type	Level	Pattern	Image	Note
TS28: inner enamel epithelium	ameloblast	Weak	Regionally restricted	1F , 1E	Expression is in in newly differentiated ameloblasts.
TS28: molar dental papilla	odontoblast	Weak	Regionally restricted	1E , 1F	Expression is in in newly differentiated odontoblasts.
TS28: stellate reticulum		Weak		1E , 1F

Structure	Cell Type	Level	Pattern	Image	Note
TS28: inner enamel epithelium	ameloblast	Trace	Regionally restricted	1G , 1H
TS28: molar dental papilla	odontoblast	Trace	Regionally restricted	1H , 1G
TS28: stellate reticulum		Trace		1G , 1H

Structure	Level	Pattern	Image	Note
TS28: cervical loop	Present	Regionally restricted	2C , 2B	Expression is in incisor labial and lingual cervical loops.
TS28: incisor	Present	Regionally restricted	2C , 2B	Expression is in labial and lingual cervical loops and surrounding mesenchymal cells.
TS28: incisor mesenchyme	Present		2B , 2D	Expression is in the mesenchyme surrounding the labial and cervical loops.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: stratum intermedium		Present		2E	Expression gradually declined along with cell differentiation.
TS28: inner enamel epithelium	ameloblast	Absent		2E
TS28: inner enamel epithelium	preameloblast	Absent		2E
TS28: incisor dental papilla	odontoblast	Absent		2E
TS28: incisor dental papilla	preodontoblast	Absent		2E

Structure	Cell Type	Level	Pattern	Image	Note
TS28: stratum intermedium		Present		2F	Expression gradually declined along with cell differentiation.
TS28: inner enamel epithelium	ameloblast	Absent		2F
TS28: inner enamel epithelium	preameloblast	Absent		2F
TS28: incisor dental papilla	odontoblast	Absent		2F
TS28: incisor dental papilla	preodontoblast	Absent		2F

Structure	Cell Type	Level	Pattern	Image	Note
TS28: stratum intermedium		Present		2G	Expression gradually declined along with cell differentiation.
TS28: inner enamel epithelium	ameloblast	Absent		2G
TS28: inner enamel epithelium	preameloblast	Absent		2G
TS28: incisor dental papilla	odontoblast	Absent		2G
TS28: incisor dental papilla	preodontoblast	Absent		2G