Probe:	Bmp4 probe50
Probe preparation:	labelled with digoxigenin RNA
Visualized with:	Alkaline phosphatase

Structure	Level	Pattern	Image	Note
TS21: lower jaw molar mesenchyme	Present	Regionally restricted	1_Bmp-4 left	Expression seen in the dental mesenchyme at the bud stage.

Structure	Level	Pattern	Image	Note
TS22: enamel knot	Present	Regionally restricted	1_Bmp-4 right	Expression seen in the distal part of the enamel knot at the cap stage.
TS22: lower jaw molar enamel organ	Present	Regionally restricted	1_Bmp-4 right	Expression seen in the distal part of the enamel knot at the cap stage.
TS22: lower jaw molar mesenchyme	Present	Widespread	1_Bmp-4 right	Expression seen along the whole tooth germ.

Structure	Level	Pattern	Image	Note
TS22: enamel knot	Present	Regionally restricted	3_Bmp-4 top	Expression seen in the distal part of the enamel knot at the cap stage.
TS22: lower jaw molar enamel organ	Present	Regionally restricted	3_Bmp-4 top	Expression seen in the distal part of the enamel knot at the cap stage.

Structure	Level	Pattern	Image	Note
TS22: lower jaw molar dental papilla	Present	Regionally restricted	3_Bmp-4 bottom	Expression seen in the dental papilla mesenchyme and in the surrounding mesenchyme along the whole tooth germ in its buccal side.
TS22: lower jaw molar mesenchyme	Present	Regionally restricted	3_Bmp-4 bottom	Expression seen in the dental papilla mesenchyme and in the surrounding mesenchyme along the whole tooth germ in its buccal side.
TS22: enamel knot	Strong	Regionally restricted	3_Bmp-4 bottom	Abundant expression seen in the distal part of the remaining enamel knot.
TS22: lower jaw molar enamel organ	Strong	Regionally restricted	3_Bmp-4 bottom	Abundant expression seen in the distal part of the remaining enamel knot.