Probe:	Pitrm1 cDNA1
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS17: branchial arch	Present		3A	Expression is present throughout the branchial arches.
TS17: fronto-nasal process	Present	Regionally restricted	3A	Expression is present at the rostral tip of the frontonasal prominence.
TS17: brain	Present		3A	Expression is present throughout much of the neural epithelium and the ventricular/subventricular zones of many brain tissues.
TS17: brain ventricular layer	Present		3A	Expression is present throughout much of the neural epithelium and the ventricular/subventricular zones of many brain tissues.
TS17: neural tube	Trace		3A	Expression is barely detectable above background levels and is uniform across the dorsal-ventral axis.

Structure	Level	Pattern	Image	Note
TS21: brain subventricular zone	Present	Regionally restricted	3B	Expression is present in the ventricular/subventricular zones of many brain tissues.
TS21: brain ventricular layer	Present	Regionally restricted	3B	Expression is present in the ventricular/subventricular zones of many brain tissues.
TS21: head mesenchyme	Present	Regionally restricted	3B	Expression is present in the mesenchyme around the nasal conchae.
TS21: cerebral cortex ventricular layer	Present		3B	Expression is present in the ventricular zone of the neocortex.
TS21: midbrain	Present	Regionally restricted	3B	Expression is present in the ventricular/subventricular zone of the tectum.

Structure	Level	Pattern	Image	Note
TS22: brain subventricular zone	Present	Regionally restricted	3C	Expression is present in the ventricular/subventricular zones of many brain tissues.
TS22: brain ventricular layer	Present	Regionally restricted	3C	Expression is present in the ventricular/subventricular zones of many brain tissues.
TS22: head mesenchyme	Present	Regionally restricted	3C	Expression is present in the mesenchyme around the nasal conchae.
TS22: incisor enamel organ	Present	Regionally restricted	3C , 3J	Expression is present in the enamel organ.
TS22: molar enamel organ	Present		3C
TS22: cerebral cortex ventricular layer	Present		3C	Expression is present in the ventricular zone of the neocortex.
TS22: tectum	Present	Regionally restricted	3C	Expression is present in the ventricular/subventricular zone of the tectum.

Structure	Level	Pattern	Image	Note
TS23: brain	Present	Regionally restricted	3D	Expression is present in the ventricular/subventricular zones of many brain tissues.
TS23: brain subventricular zone	Present	Regionally restricted	3D	Expression is present in the ventricular/subventricular zones of many brain tissues.
TS23: cerebellum	Present	Regionally restricted	3D	Expression is present in the rhombic lip, in the ventricular zone, and the external granule cell layer of the cerebellum.
TS23: cerebellum external granule cell layer	Present	Regionally restricted	3D	Expression is present in the rhombic lip, in the ventricular zone, and the external granule cell layer of the cerebellum.
TS23: cerebellum ventricular layer	Present	Regionally restricted	3D	Expression is present in the rhombic lip, in the ventricular zone, and the external granule cell layer of the cerebellum.
TS23: incisor enamel organ	Present		3D	Expression is present in the enamel organ.
TS23: molar enamel organ	Present		3D	Expression is present in the enamel organ.
TS23: cerebral cortex ventricular layer	Present		3D	Expression is present in the ventricular zone of the neocortex.
TS23: hippocampus	Present	Regionally restricted	3D	Expression is present in the ventricular/subventricular zone.
TS23: inferior colliculus	Present	Regionally restricted	3D	Expression is present in the ventricular/subventricular zone.
TS23: superior colliculus	Present	Regionally restricted	3D	Expression is present in the ventricular/subventricular zone.
TS23: lateral ganglionic eminence	Present	Regionally restricted	3D	Expression is present in the ventricular/subventricular zone of the medial and lateral ganglionic eminences.
TS23: medial ganglionic eminence	Present	Regionally restricted	3D	Expression is present in the ventricular/subventricular zone of the medial and lateral ganglionic eminences.

Structure	Level	Pattern	Image	Note
TS20: brain subventricular zone	Present	Regionally restricted	3E	Expression is present in the ventricular/subventricular zones of many brain tissues.
TS20: brain ventricular layer	Present	Regionally restricted	3E	Expression is present in the ventricular/subventricular zones of many brain tissues.
TS20: cerebral cortex ventricular layer	Present		3E	Expression is present in the ventricular zone of the neocortex.
TS20: lateral ganglionic eminence	Present	Regionally restricted	3E	Expression is present in the ventricular/subventricular zone of the medial and lateral ganglionic eminences.
TS20: medial ganglionic eminence	Present	Regionally restricted	3E	Expression is present in the ventricular/subventricular zone of the medial and lateral ganglionic eminences.

Structure	Level	Pattern	Image	Note
TS21: brain subventricular zone	Present	Regionally restricted	3F	Expression is present in the ventricular/subventricular zones of many brain tissues.
TS21: brain ventricular layer	Present	Regionally restricted	3F	Expression is present in the ventricular/subventricular zones of many brain tissues.
TS21: cerebral cortex ventricular layer	Present		3F	Expression is present in the ventricular zone of the neocortex.

Structure	Level	Pattern	Image	Note
TS22: extrinsic ocular muscle	Present		3G
TS22: masticatory muscle	Present	Regionally restricted	3G
TS22: tongue muscle	Present		3G
TS22: head mesenchyme	Present	Regionally restricted	3G	Expression is present in the mesenchyme around the nasal conchae.
TS22: lens	Present		3G
TS22: retina	Present		3G
TS22: incisor enamel organ	Present		3G	Expression is present in the enamel organ.
TS22: molar enamel organ	Present		3G	Expression is present in the enamel organ.
TS22: submandibular gland primordium epithelium	Present		3G , 3I

Structure	Level	Pattern	Image	Note
TS22: hair	Present	Regionally restricted	3P , 3O , 3H	Expression is restricted to the hair matrix. It is present in the region on the upper side of the hair bulb and does not extend to the epithelial tissues further up the hair shaft.

Structure	Level	Pattern	Image	Note
TS23: molar enamel organ	Present		3L , 3K

Structure	Level	Pattern	Image	Note
TS20: trunk musculature	Present		3M	Expression is present in the musculature of the body wall within the flank.

Structure	Level	Pattern	Image	Note
TS20: spinal cord	Weak			Expression is low in the neural tube.

Structure	Level	Pattern	Image	Note
TS21: trunk musculature	Present		3N	Expression is present in the musculature of the body wall.
TS21: spinal cord	Weak		3N	Expression is low in the neural tube.
TS21: lung epithelium	Present		3N
TS21: lung mesenchyme	Present		3N