Antibody:

anti-MK

Structure	Level	Pattern	Image	Note
TS19: mandibular process	Strong	Regionally restricted	2a	Expression is on the cell surfaces and basement membranes in the thickened epithelium.
TS19: maxillary process	Strong	Regionally restricted	2a	Expression is on the cell surfaces and basement membranes in the thickened epithelium.
TS19: oral epithelium	Strong	Regionally restricted	2a	Expression is on the cell surfaces and basement membranes in the thickened epithelium.
TS19: mandibular process mesenchyme	Weak	Punctate	2a

Structure	Level	Pattern	Image	Note
TS21: lower jaw molar epithelium	Present	Regionally restricted	2b	Expression is on the cell surface of the dental epithelial bud and in the basement membrane.
TS21: tooth bud	Present	Regionally restricted	2b	Expression is on the cell surface of the dental epithelial bud and in the basement membrane.
TS21: lower jaw molar mesenchyme	Present	Regionally restricted	2b	Expression is on the cell surface of the condensed dental mesenchyme.

Structure	Level	Pattern	Image	Note
TS22: lower jaw molar mesenchyme	Present	Regionally restricted	2c	Expression is on the cell surface of the condensed dental mesenchyme.
TS22: lower jaw molar epithelium	Present	Regionally restricted	2c	Expression is on the cell surface of the dental epithelial bud and in the basement membrane.
TS22: lower jaw	Present	Regionally restricted	2c	Expression is in the dental epithelium and mesenchyme and is absent in surrounding tissues.
TS22: mandible	Weak	Regionally restricted	2c	Expression is in osteogenic and chondrogenic areas.
TS22: cap stage tooth	Present	Regionally restricted	2c

Structure	Level	Pattern	Image	Note
TS24: inner enamel epithelium	Present	Regionally restricted	2d	Expression is on the surfaces of cells of the inner dental epithelium and in the basement membrane.
TS24: lower jaw molar epithelium	Present	Regionally restricted	2d	Expression is on the surfaces of cells of the inner dental epithelium and in the basement membrane.
TS24: lower jaw molar mesenchyme	Present	Regionally restricted	2d	Expression is in mesenchymal cells underlying the enamel epithelium in the cuspal area.
TS24: lower jaw molar dental papilla	Weak		2d
TS24: early bell stage tooth	Present	Regionally restricted	2d

Structure	Level	Pattern	Image	Note
TS26: inner enamel epithelium	Present	Regionally restricted	2e	Expression is in the inner dental epithelium (preameloblasts).
TS26: lower jaw molar enamel organ	Present	Regionally restricted	2e	Expression is in the inner dental epithelium (preameloblasts).
TS26: lower jaw molar dental papilla	Present	Regionally restricted	2e	Expression is in the mesenchyme and basement membrane.
TS26: lower jaw molar mesenchyme	Present	Regionally restricted	2e	Expression is in the processes of the differentiating odontoblasts.
TS26: bell stage tooth	Present	Regionally restricted	2e

Structure	Level	Pattern	Image	Note
TS27: lower jaw molar dental papilla	Present	Regionally restricted	2f	Expression is localized on the surfaces of differentiating odontoblasts and is lost from odontoblasts after terminal differentiation.
TS27: molar dental pulp	Present	Regionally restricted	2f	Expression is in the center.
TS27: predentin	Present		2f

Structure	Level	Pattern	Image	Note
TS23: inner enamel epithelium	Strong	Regionally restricted	3b	Expression is on the surfaces of cells of the inner dental epithelium and in the basement membrane.
TS23: lower jaw molar enamel organ	Strong	Regionally restricted	3b	Expression is on the surfaces of cells of the inner dental epithelium and in the basement membrane.
TS23: lower jaw molar mesenchyme	Weak		3b
TS23: cap stage tooth	Present	Regionally restricted	3b

Structure	Level	Pattern	Image	Note
TS20: oral region mesenchyme	Present	Regionally restricted		Expression is on the surfaces of condensing mesenchymal cells in close contact with dental epithelium and is punctate in more peripheral mesenchymal cells.