Antibody:	IRE1 alpha (p Ser724) antibody (NB100-2323)
Detection system:	Biotinylated secondary antibody/[Strept]avidin coupled to horseradish peroxidase

Structure	Level	Pattern	Image	Note
TS27: molar dental papilla	Present	Regionally restricted	5d	Expression approximately the same in ameloblasts and odontoblasts. Expression on buccal side is nuclear; expression on lingual side is cytosolic and nuclear.
TS27: molar enamel organ	Present	Regionally restricted	5d	Expression approximately the same in ameloblasts and odontoblasts. Expression on buccal side is nuclear; expression on lingual side is cytosolic and nuclear.

Structure	Level	Pattern	Image	Note
TS27: molar dental papilla	Present	Regionally restricted	5d'	Expression approximately the same in ameloblasts and odontoblasts. Expression on buccal side is nuclear; expression on lingual side is cytosolic and nuclear.
TS27: molar enamel organ	Present	Regionally restricted	5d'	Expression approximately the same in ameloblasts and odontoblasts. Expression on buccal side is nuclear; expression on lingual side is cytosolic and nuclear.

Structure	Level	Pattern	Image	Note
TS27: molar dental papilla	Present	Regionally restricted	5d"	Expression approximately the same in ameloblasts and odontoblasts. Expression on buccal side is nuclear; expression on lingual side is cytosolic and nuclear.
TS27: molar enamel organ	Present	Regionally restricted	5d"	Expression approximately the same in ameloblasts and odontoblasts. Expression on buccal side is nuclear; expression on lingual side is cytosolic and nuclear.