Antibody:	anti-CK5
Detection system:	Biotinylated secondary antibody/[Strept]avidin coupled to horseradish peroxidase

Structure	Level	Pattern	Image	Note
TS23: submandibular gland	Present	Single cells	3a	Expression is in a few basal cells at the branching point in the terminal epithelial bud.

Structure	Cell Type	Level	Pattern	Image	Note
TS27: submandibular duct		Present	Regionally restricted	3b	Expression is in basal cells in the ductal epithelium.
TS27: submandibular gland epithelium	acinar cell of salivary gland	Present	Single cells	3b	Expression is in a few positive acinar cells.
TS27: submandibular gland epithelium	myoepithelial cell	Present		3b

Structure	Cell Type	Level	Pattern	Image	Note
TS28: submandibular gland epithelium	acinar cell of salivary gland	Strong	Regionally restricted	3c	Expression is in acinar cells.
TS28: submandibular duct		Present	Regionally restricted	3c	Expression is in basal cells in the ductal epithelium.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: submandibular duct		Present	Regionally restricted	3d	Expression is in basal cells in the ductal epithelium.
TS28: submandibular gland epithelium	myoepithelial cell	Present	Regionally restricted	3d	Expression is in myoepithelial cells and is absent in acinar cells.
TS28: submandibular gland epithelium	acinar cell of salivary gland	Absent		3d	Expression is in myoepithelial cells and is absent in acinar cells.

Structure	Level	Pattern	Image	Note
TS23: sublingual gland	Present	Single cells	3e	Expression is in a few cells at the branching point in the presumptive ductal epithelium.

Structure	Cell Type	Level	Pattern	Image	Note
TS27: sublingual duct		Present	Regionally restricted	3f	Expression is in basal cells in the ductal epithelium of the intercalated and striated ducts.
TS27: sublingual gland epithelium	acinar cell of salivary gland	Present	Regionally restricted	3f	Expression is in myoepithelial, serous demilune, and acinar cells.
TS27: sublingual gland epithelium	myoepithelial cell	Present	Regionally restricted	3f	Expression is in myoepithelial, serous demilune, and acinar cells.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: sublingual duct		Present	Regionally restricted	3g	Expression is in basal cells in the ductal epithelium.
TS28: sublingual gland epithelium	myoepithelial cell	Present	Regionally restricted	3g	Expression is in myoepithelial and serous demilune cells.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: sublingual duct		Present	Regionally restricted	3h	Expression is in the basal cells of the main duct.
TS28: sublingual gland epithelium	myoepithelial cell	Present	Regionally restricted	3h	Expression is in myoepithelial and serous demilune cells.

Structure	Level	Pattern	Image	Note
TS23: parotid gland	Present	Single cells	3i	Expression is in basal cells in the epithelial buds.

Structure	Level	Pattern	Image	Note
TS27: parotid duct	Present	Regionally restricted	3j	Expression is in basal cells.
TS27: parotid gland epithelium	Present	Single cells	3j	Expression is in a few basal cells in the terminal epithelial buds.

Structure	Cell Type	Level	Pattern	Image	Note
TS28: parotid duct		Strong	Regionally restricted	3k	Expression is in basal cells of the main duct and the intercalated duct.
TS28: parotid gland acinus	acinar cell of salivary gland	Strong		3k

Structure	Cell Type	Level	Pattern	Image	Note
TS28: parotid gland acinus	acinar cell of salivary gland	Present	Regionally restricted	3l
TS28: parotid duct		Absent		3l