Probe:	NX1b
Probe preparation:	Antisense labelled with S35 RNA

Structure	Level	Pattern	Image	Note
TS20: spinal cord	Present	Regionally restricted	3B	Expression in the thoracic level was more restricted than at the lumbar level. Expression was in postmitotic neurons.

Structure	Level	Pattern	Image	Note
TS20: spinal cord	Present		3G	Expression was in postmitotic neurons.
TS20: dorsal root ganglion	Weak		3G

Structure	Level	Pattern	Image	Note
TS17: future spinal cord	Present			Results were similar to the caudal region of E12 embryos.

Structure	Level	Pattern	Image	Note
TS19: future spinal cord	Present			Results were similar to the caudal region of E12 embryos.

Structure	Level	Pattern	Image	Note
TS23: spinal cord gray matter	Present	Widespread	3L
TS23: spinal cord dorsal horn	Present		3L	Expression was somewhat higher in the dorsal horn gray matter.

Structure	Level	Pattern	Image	Note
TS23: dorsal root ganglion	Present		4C , 4D
TS23: sympathetic ganglion	Absent		4C

Structure	Level	Pattern	Image	Note
TS20: brain	Present	Widespread	5B	Expression was detected in all parts of the brain with the exception of the forebrain, where only weak signals were seen. Expression was restricted to postmitotic neurons that had left the ventricular zone.
TS20: forebrain	Weak		5B

Structure	Level	Pattern	Image	Note
TS23: brain	Present	Widespread	5G	Expression was detected in most brain regions.
TS23: cervical ganglion	Present		5G
TS23: trigeminal ganglion	Present		5G

Structure	Level	Pattern	Image	Note
TS23: cerebellum	Strong		5L
TS23: cortical plate	Strong		5L
TS23: hindbrain	Strong		5L
TS23: hippocampus	Strong		5L
TS23: midbrain	Strong		5L
TS23: tectum	Strong	Non-Uniform	5L	The anterior parts of the tectum displayed higher levels of transcript than the more posterior parts.
TS23: corpus striatum	Strong	Regionally restricted	5L

Structure	Level	Pattern	Image	Note
TS23: trigeminal ganglion	Present		6B

Structure	Level	Pattern	Image	Note
TS23: retina nuclear layer	Present	Regionally restricted		Expression was detected in all cells of the inner nuclear layer.