Probe:	mdkk3 cDNA
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS17: bulbus cordis	Present		4D	Expression is present in myocardial cells of the developing ventricles in the cells of the bulbus cordis.
TS17: sinus venosus	Present		4D	Expression is present in myocardial cells of the developing ventricles in the cells of the bulbus cordis.
TS17: head mesenchyme	Present		4D	Expression is present in the head mesoderm of the fronto-nasal prominence.
TS17: 1st branchial arch	Absent		4D

Structure	Level	Pattern	Image	Note
TS20: endocardial cushion	Strong		4I	Expression is found in the cushions that develop in the atrioventricular and truncoconal region.
TS20: dorsal aorta	Strong		4I
TS20: heart	Strong		4I	Expression is present in the aortic valve area.
TS20: pulmonary artery	Weak		4I
TS20: left atrium	Present	Regionally restricted	4I	Expression is present in the ventral walls.
TS20: right atrium	Present	Regionally restricted	4I	Expression is present in the ventral walls.
TS20: blood vessel	Present		4I	Expression is present in emerging blood vessels.
TS20: lung	Present	Regionally restricted	4I	Expression is present in cells condensing around the main branches of the bronchus.

Structure	Level	Pattern	Image	Note
TS15: limb	Absent		5K

Structure	Level	Pattern	Image	Note
TS20: limb mesenchyme	Present		5N	Expression is present in mesenchymal condensations around bone primordia. It is absent from medial regions of developing bone.

Structure	Level	Pattern	Image	Note
TS20: limb mesenchyme	Present		5Q	Expression is present in mesenchymal condensations around bone primordia. It is absent from medial regions of developing bone.

Structure	Level	Pattern	Image	Note
TS20: nose	Present	Regionally restricted	6D	Expression is present in mesoderm derived cells in the nasal capsule.
TS20: primary palate	Moderate		6D
TS20: cartilage	Present		6D
TS20: vibrissa	Weak		6D
TS20: head mesenchyme	Weak		6D	Expression is present in mesoderm adjacent to hair or whisker follicles.

Structure	Level	Pattern	Image	Note
TS20: head mesenchyme	Strong	Regionally restricted	6H	There is strong expression in mesenchyme adjacent to developing teeth.
TS20: primary palate	Weak		6H	There is weak expression in the palate.

Structure	Level	Pattern	Image	Note
TS17: diencephalon	Present	Regionally restricted	8C	Expression is present in the ventral diencephalon.
TS17: midbrain	Weak	Regionally restricted	8C	Expression is present in the cranial flexure.

Structure	Level	Pattern	Image	Note
TS19: retina	Present		8F

Structure	Level	Pattern	Image	Note
TS20: pericardial component	Strong			Strong expression is present in the pericardial sac.
TS20: intraembryonic coelom	Present	Regionally restricted		Expression is present in the mesenchyme of the developing diaphragm.
TS20: peritoneal component	Present
TS20: telencephalon ventricular layer	Present
TS20: spinal cord ventricular layer	Present	Regionally restricted		Expression is present in the ventricular zone in the basal half of the neural tube.
TS20: spinal cord roof plate	Present

Structure	Level	Pattern	Image	Note
TS23: embryo mesenchyme	Trace			Expression is barely detectable in undifferentiated lateral mesenchymal cells in the body and limbs.
TS23: limb mesenchyme	Trace			Expression is barely detectable in undifferentiated lateral mesenchymal cells in the body and limbs.

Structure	Level	Pattern	Image	Note
TS28: decidua	Absent

Structure	Level	Pattern	Image	Note
TS23: skeleton	Absent