Probe:	Gpr155 Probe-1
Probe preparation:	Antisense labelled with digoxigenin RNA

Structure	Level	Pattern	Image	Note
TS28: corpus striatum	Strong	Graded	3A	Highest level of expression in striatum. Prounounced lateral-to-medial gradient.
TS28: caudate-putamen	Strong		3A
TS28: accumbens nucleus	Present	Scattered	3A	Low to moderate expression levels in cells scattered throughout accumbens nucleus and globus pallidus.
TS28: globus pallidus	Present	Scattered	3A	Low to moderate expression levels in cells scattered throughout accumbens nucleus and globus pallidus.
TS28: olfactory tubercle	Strong		3A	High intensity expression in olfactory tubercle and piriform cortex.
TS28: piriform cortex	Strong		3A	High intensity expression in olfactory tubercle and piriform cortex.
TS28: lateral septal nucleus	Moderate		3A
TS28: medial septal nucleus	Weak		3A
TS28: nucleus of diagonal band	Weak		3A

Structure	Level	Pattern	Image	Note
TS28: corpus striatum	Strong	Graded	3B , 3G	Highest expression in clusters of medium-sized projection neurons located in lateral striatum, gradually decreasing medially and ventrally.
TS28: caudate-putamen	Strong		3G , 3B
TS28: olfactory tubercle	Strong		3B , 3G
TS28: piriform cortex	Strong		3B , 3G

Structure	Level	Pattern	Image	Note
TS28: corpus striatum	Strong	Graded	3C	Highest level of expression in striatum. Prounounced lateral-to-medial gradient,
TS28: caudate-putamen	Strong		3C
TS28: hypothalamic nucleus	Weak		3C	Relatively low expression in thalamic and hypothalamic nuclei compared to other brain regions.
TS28: thalamic nucleus	Weak		3C	Relatively low expression in thalamic and hypothalamic nuclei compared to other brain regions.

Structure	Level	Pattern	Image	Note
TS28: corpus striatum	Present	Graded	3D , 3H	Prounounced lateral-to-medial gradient in striatum, gradually decreasing medially and ventrally.
TS28: olfactory tubercle	Strong		3D , 3H	High intensity expression in olfactory tubercle and piriform cortex.
TS28: piriform cortex	Strong		3D , 3H	High intensity expression in olfactory tubercle and piriform cortex.

Structure	Level	Pattern	Image	Note
TS28: main olfactory bulb glomerular layer	Present		4A
TS28: main olfactory bulb granule cell layer	Present		4A
TS28: main olfactory bulb mitral cell layer	Present		4A
TS28: anterior olfactory nucleus	Present		4A	Low to moderate expression in anterior olfactory nucleus.

Structure	Level	Pattern	Image	Note
TS28: cortical layer II	Moderate		4B
TS28: cortical layer III	Moderate		4B
TS28: cortical layer V	Weak		4B
TS28: cortical layer VI	Weak		4B

Structure	Level	Pattern	Image	Note
TS28: hippocampus pyramidal cell layer	Very strong		4C	Very intense expression in most cells of pyramidal cell layer of hippocampus.
TS28: hippocampus stratum lacunosum	Present	Scattered	4C	Moderate to low expression in cells scattered across stratum oriens, startum radiatum and stratum lacunosum-moleculare.
TS28: hippocampus stratum oriens	Present	Scattered	4C	Moderate to low expression in cells scattered across stratum oriens, startum radiatum and stratum lacunosum-moleculare.
TS28: hippocampus stratum radiatum	Present	Scattered	4C	Moderate to low expression in cells scattered across stratum oriens, startum radiatum and stratum lacunosum-moleculare.

Structure	Level	Pattern	Image	Note
TS28: hippocampus pyramidal cell layer	Strong		4D
TS28: dentate gyrus hilus	Moderate	Regionally restricted	4D	Moderate expression in some neurons in molecular layer and hilar region of dentate gyrus.
TS28: dentate gyrus molecular layer	Moderate	Regionally restricted	4D	Moderate expression in some neurons in molecular layer and hilar region of dentate gyrus.

Structure	Level	Pattern	Image	Note
TS28: amygdaloid nucleus	Moderate	Regionally restricted	4E	Moderate to high expression in amygdaloid nuclei.
TS28: basolateral amygdaloid nucleus	Strong		4E	Highest expression in basolateral and lateral amygdaloid nuclei.
TS28: lateral amygdaloid nucleus	Strong		4E	Highest expression in basolateral and lateral amygdaloid nuclei.

Structure	Level	Pattern	Image	Note
TS28: basolateral amygdaloid nucleus	Strong		4F

Structure	Level	Pattern	Image	Note
TS28: ventromedial hypothalamic nucleus	Moderate		4G

Structure	Level	Pattern	Image	Note
TS28: substantia nigra pars compacta	Present		4H

Structure	Level	Pattern	Image	Note
TS28: midbrain	Weak	Regionally restricted	4I	Relatively low expression in midbrain.
TS28: superior colliculus	Moderate	Regionally restricted	4I	Moderate to high level pf exprression in intermediate gray layer of superior colliculus.

Structure	Level	Pattern	Image	Note
TS28: midbrain	Weak	Regionally restricted	4J	Relatively low expression in midbrain.
TS28: parabigeminal nucleus	Moderate		4J	Moderate to high level of expression within parabigeminal nucleus.

Structure	Level	Pattern	Image	Note
TS28: medulla oblongata	Trace		4K	Very low level of expression in pons and medully oblongata.
TS28: pons	Trace		4K	Very low level of expression in pons and medully oblongata.
TS28: dorsal cochlear nucleus	Strong	Scattered	4K	High expression in scattered cells in dorsal cochlear nucleus.

Structure	Level	Pattern	Image	Note
TS28: cerebellar cortex	Moderate	Regionally restricted	4L
TS28: cerebellum Purkinje cell layer	Strong		4L	Expression predominantly in Purkinje cells and granular cell layer.
TS28: cerebellum granule cell layer	Strong		4L	Expression predominantly in Purkinje cells and granular cell layer.
TS28: cerebellum molecular layer	Weak	Single cells	4L	Low level of expression in small number of cells in molecular layer.

Structure	Level	Pattern	Image	Note
TS28: anterior dorsal thalamic nucleus	Present			Low to moderate expression in paraventricular, anterodorsal and anteroventral thalamic nucleus.
TS28: anterior ventral thalamic nucleus	Present			Low to moderate expression in paraventricular, anterodorsal and anteroventral thalamic nucleus.
TS28: paraventricular hypothalamic nucleus	Present			Low to moderate expression in paraventricular, anterodorsal and anteroventral thalamic nucleus.
TS28: medial habenular nucleus	Weak
TS28: spinal cord cervical region	Moderate	Regionally restricted		In cervical part of spinal cord, moderate expression in small neurons in laminae II and II of dorsal horn.
TS28: spinal cord dorsal horn	Moderate	Regionally restricted		In cervical part of spinal cord, moderate expression in small neurons in laminae II and II of dorsal horn.
TS28: spinal cord lamina	Moderate	Regionally restricted		Moderate expression in some large neurons in laminae V, VII and X.