Probe:	Bmp4 cDNA5
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS15: 1st branchial arch maxillary component mesenchyme derived from neural crest	Present	Diffuse	3A
TS15: 1st branchial arch maxillary component ectoderm	Strong	Regionally restricted	3A	Strong band of expression localized apically in overlying epithelium of maxillary process.

Structure	Level	Pattern	Image	Note
TS15: 1st branchial arch mandibular component mesenchyme derived from neural crest	Present	Diffuse	3B	Diffuse expression in mandibular ectomesenchyme.
TS15: 1st branchial arch mandibular component ectoderm	Strong	Regionally restricted	3B	Strong expression in overlying epithelium on superior and lateral aspects of mandibular process.
TS15: 1st branchial arch mandibular component mesenchyme	Trace	Regionally restricted	3B	Very weak expression (only slightly above background) in underlying mesenchyme.
TS15: heart	Strong		3B	Strong expression in heart primordia.
TS15: otocyst epithelium	Present		3B	Expression in epithelial wall of otic vesicle.

Structure	Level	Pattern	Image	Note
TS15: limb ectoderm	Present	Regionally restricted	3C	Expression on apical epithelium of devleoping limb bud.

Structure	Level	Pattern	Image	Note
TS17: 1st branchial arch mandibular component mesenchyme derived from neural crest	Weak	Diffuse	3D	Weak, diffuse expression persists throughout ectomesenchyme of maxillary and mandibular processes.
TS17: 1st branchial arch maxillary component mesenchyme derived from neural crest	Weak	Diffuse	3D	Weak, diffuse expression persists throughout ectomesenchyme of maxillary and mandibular processes.
TS17: 1st branchial arch mandibular component ectoderm	Absent		3D	No expresssion in epithelium overlying maxiallary and mandibular processes.
TS17: 1st branchial arch maxillary component ectoderm	Absent		3D	No expresssion in epithelium overlying maxiallary and mandibular processes.
TS17: heart	Present		3D	Expression persisted in heart primordia.

Structure	Level	Pattern	Image	Note
TS19: embryo	Weak			Authors report expression became less prominenet at E11.5 and successive days.

Structure	Level	Pattern	Image	Note
TS21: upper jaw tooth mesenchyme	Present	Regionally restricted	4A/B	Expression in developing maxillary tooth germ. Expression in a very limited group of cells within the dental papilla. Diffuse pattern of expression persists in ectomesenchyme that will form the dental follicle and papilla.
TS21: upper jaw tooth dental lamina	Absent		4A/B
TS21: thoracic segment of trunk	Present	Regionally restricted	4A/B	Expression around midline structures of the thorax.