Probe:

Bmp4 probe78

Structure	Level	Pattern	Image	Note
TS22: lower jaw molar	Present	Regionally restricted	3B	Expression in a line, broader than that of Bmp2.
TS22: lower jaw mesenchyme	Present	Regionally restricted	3B	Expression in mesenchyme buccal to tooth epithelium.

Structure	Level	Pattern	Image	Note
TS24: lower jaw molar	Strong	Regionally restricted	3E	Strong expression in presumptive L2, L3, B2 and B3 cusp regions. Only weak expression in anterior region.

Structure	Level	Pattern	Image	Note
TS26: lower jaw molar	Present	Widespread	3H	Expression in all presumptive cusp regions.

Structure	Level	Pattern	Image	Note
TS27: upper jaw molar	Present	Regionally restricted	3K	Expression in cusp B2, B3, L2 and L3 regions. No expression in L1 and B1 regions.

Structure	Level	Pattern	Image	Note
TS22: upper jaw molar	Present	Regionally restricted	3N	Linear expression, broader than that of Bmp2, with expression lacking in the center of the domain. Expression in posterior extended tooth germ.
TS22: upper jaw mesenchyme	Present	Regionally restricted	3N	Expression in mesenchyme buccal to tooth epithelium.

Structure	Level	Pattern	Image	Note
TS24: upper jaw molar	Present	Regionally restricted	3Q	Two large domains of expression in first molars. No expression in center of posterior expression domain.

Structure	Level	Pattern	Image	Note
TS26: upper jaw molar	Present	Regionally restricted	3T	Expression detected in all presumptive cusp regions, in characteristic V-shaped pattern.

Structure	Level	Pattern	Image	Note
TS27: upper jaw molar	Present	Regionally restricted	3W	Expression in all cusp regions and transverse crest, in characteristic V-shaped pattern.