Antibody:	Netrin 3 antibody
Detection system:	Secondary antibody coupled to horseradish peroxidase

Structure	Level	Pattern	Image	Note
TS15: future spinal cord	Absent

Structure	Level	Pattern	Image	Note
TS17: future spinal cord	Absent
TS17: dorsal root ganglion	Trace

Structure	Level	Pattern	Image	Note
TS19: future spinal cord	Absent
TS19: dorsal root ganglion	Trace

Structure	Level	Pattern	Image	Note
TS20: dorsal root ganglion	Trace

Structure	Level	Pattern	Image	Note
TS21: basal columns	Strong	Regionally restricted		Expression is in motor neurons.
TS21: dorsal root ganglion	Strong	Regionally restricted		Expression is in motor neurons.

Structure	Level	Pattern	Image	Note
TS22: basal columns	Strong		1A
TS22: dorsal root ganglion	Present	Single cells	1D , 1C , 1A	Expression is in large-diameter neurons.

Structure	Level	Pattern	Image	Note
TS22: dorsal root ganglion	Strong	Single cells	1E	Expression is in large-diameter neurons.

Structure	Level	Pattern	Image	Note
TS23: dorsal root ganglion	Strong	Single cells	1F	Expression is in the large-diameter neurons.

Structure	Level	Pattern	Image	Note
TS23: basal columns	Present		1G

Structure	Level	Pattern	Image	Note
TS22: trigeminal ganglion	Present		2A , 2B
TS22: trigeminal nerve	Present		2A , 2B
TS22: vestibulo-cochlear ganglion	Present	Single cells	2A , 2B	Expression is on axons projecting from the ganglion.

Structure	Level	Pattern	Image	Note
TS22: vestibulo-cochlear ganglion	Present	Single cells	3A	Expression is on axons projecting from the ganglion.

Structure	Level	Pattern	Image	Note
TS22: pons	Present	Single cells	2C , 2D	Expression is in neurons.
TS22: glossopharyngeal ganglion	Present	Single cells	2D , 2C	Expression is in neurons.
TS22: glossopharyngeal nerve	Present	Single cells	2D , 2C	Expression is in neurons.

Structure	Level	Pattern	Image	Note
TS22: glossopharyngeal ganglion	Present	Single cells	3B	Expression is in neurons.
TS22: glossopharyngeal nerve	Present	Single cells	3B	Expression is in neurons.

Structure	Level	Pattern	Image	Note
TS22: central nervous system nerve	Present	Regionally restricted	2E	Expression is in peripheral trigeminal projections including whisker row nerves diverging from the infraorbital nerve.

Structure	Level	Pattern	Image	Note
TS22: central nervous system nerve	Present	Regionally restricted	2F	Expression is in the innervating fibers surrounding the whisker pads.

Structure	Level	Pattern	Image	Note
TS22: sympathetic ganglion	Present	Regionally restricted	3D , 3C	Expression is in the sympathetic ganglia and their projecting axons such as those surrounding the descending aorta and in the lumbar region.