Antibody:	anti-PDGF-alpha receptor
Detection system:	Secondary antibody coupled to fluorescein

Structure	Level	Pattern	Image	Note
TS20: basement membrane	Present	Regionally restricted	3A	Expression is uniform in the basement membrane and around the cell membranes.
TS20: palatal shelf mesenchyme	Present	Regionally restricted	3A	Expression is uniform in the basement membrane and around the cell membranes.
TS20: nasal epithelium	Weak	Regionally restricted	3A	Expression is punctate and is absent in the medial epithelia.
TS20: oral epithelium	Absent		3A

Structure	Level	Pattern	Image	Note
TS21: palatal shelf epithelium	Very strong	Regionally restricted	3B	Expression is in the medial edge epithelia.
TS21: nasal epithelium	Very strong		3B
TS21: tongue epithelium	Very strong		3B
TS21: palatal shelf mesenchyme	Present		3B	Expression is at the cell membranes and is stronger on the nasal side.
TS21: basement membrane of epithelium	Present	Regionally restricted	3B	Expression is in the oral epithelium.
TS21: nerve	Present	Regionally restricted	3B	Expression is in the palate.
TS21: tongue muscle	Present		3B
TS21: oral epithelium	Weak		3B

Structure	Level	Pattern	Image	Note
TS22: palatal shelf epithelium	Very strong	Regionally restricted	3C	Expression is in the medial epithelia.
TS22: nasal epithelium	Very strong		3C
TS22: tongue epithelium	Very strong		3C
TS22: blood vessel	Present	Regionally restricted	3C	Expression is in the palate.
TS22: nerve	Present	Regionally restricted	3C	Expression is in the palate.
TS22: tongue muscle	Present		3C
TS22: oral epithelium	Weak		3C

Structure	Level	Pattern	Image	Note
TS23: tongue epithelium	Very strong		3D
TS23: nasal epithelium	Strong		3D
TS23: palatal shelf epithelium	Strong	Regionally restricted	3D	Expression is in the nasal and medial edge epithelia and the epithelial triangles.
TS23: blood vessel	Present	Regionally restricted	3D	Expression is in the palate.
TS23: nerve	Present	Regionally restricted	3D	Expression is in the palate.
TS23: tongue muscle	Present		3D
TS23: oral epithelium	Weak		3D

Structure	Level	Pattern	Image	Note
TS23: oral epithelium	Very strong	Regionally restricted	3E	Expression is in the middle of oral epithelia.
TS23: palatal shelf epithelium	Very strong	Regionally restricted	3E	Expression is in the middle of oral epithelia.
TS23: nasal epithelium	Very strong	Regionally restricted	3E	Expression is in basal and the surface layer.
TS23: tongue epithelium	Very strong		3E
TS23: palatal shelf mesenchyme	Present	Punctate	3E
TS23: nerve	Present	Regionally restricted	3E	Expression is in the palate.
TS23: tongue muscle	Present		3E

Structure	Level	Pattern	Image	Note
TS20: lens vesicle	Very strong		6B
TS20: optic nerve	Very strong		6B
TS20: retina	Very strong		6B
TS20: optic stalk	Absent		6B	Expression is absent in the optic disc.

Structure	Level	Pattern	Image	Note
TS21: enamel epithelium	Present	Regionally restricted	8B
TS21: tooth mesenchyme	Weak		8B

Structure	Level	Pattern	Image	Note
TS23: oral epithelium	Very strong	Regionally restricted	9B	Expression is in the buccal oral epithelium.
TS23: inner enamel epithelium	Present	Regionally restricted	9B
TS23: outer enamel epithelium	Present	Regionally restricted	9B
TS23: stellate reticulum	Present	Regionally restricted	9B
TS23: dental papilla	Absent		9B