Probe:	Sulf1 cDNA6
Probe preparation:	Antisense labelled with digoxigenin RNA

Structure	Level	Pattern	Image	Note
TS24: inner enamel epithelium	Present		2A
TS24: outer enamel epithelium	Present		2A
TS24: stellate reticulum	Present		2A
TS24: tooth mesenchyme	Present		2A

Structure	Cell Type	Level	Pattern	Image	Note
TS27: outer enamel epithelium		Present		2B
TS27: stellate reticulum		Present		2B
TS27: stratum intermedium		Present		2B
TS27: inner enamel epithelium		Present	Regionally restricted	2B	Expression was only present in the cervical regions of the inner enamel epithelium.
TS27: tooth	ameloblast	Absent		2B	Expression was not detected in differentiated ameloblasts.

Structure	Level	Pattern	Image	Note
TS27: inner enamel epithelium	Present	Regionally restricted	2C	Expression was only present in the cervical regions of the inner enamel epithelium.

Structure	Cell Type	Level	Pattern	Image	Note
TS27: tooth	ameloblast	Absent		2D	Expression was not detected in differentiated ameloblasts.

Structure	Level	Pattern	Image	Note
TS28: dental pulp	Present		2E

Structure	Level	Pattern	Image	Note
TS28: dental pulp	Present	Regionally restricted	2F	Signals were particularly intense in the cells underlying the differentiated odontoblasts.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: Hertwig's epithelial root sheath		Present		2G
TS28: tooth mesenchyme	odontoblast	Present	Regionally restricted	2G	Expression was detected in the differentiating odontoblasts underlying the root sheath.