Probe:	Cbx4 cDNA1
Probe preparation:	Antisense labelled with digoxigenin RNA
Visualized with:	Alkaline phosphatase

Structure	Level	Pattern	Image	Note
TS21: cerebral cortex ventricular layer	Weak
TS21: cortical plate	Weak
TS21: forebrain	Weak	Regionally restricted		Expression is in the hippocampus.

Structure	Level	Pattern	Image	Note
TS26: cerebral cortex	Weak		4D' , 4D , 4D"
TS26: cortical plate	Weak		4D' , 4D , 4D"

Structure	Level	Pattern	Image	Note
TS26: hippocampus	Present	Regionally restricted	5E	Expression is in CA1-3. Higher magnification was shown in the inset.
TS26: dentate gyrus	Present		5E	Higher magnification was shown in the inset.

Structure	Level	Pattern	Image	Note
TS26: main olfactory bulb	Present	Regionally restricted	6D	Higher magnification was shown in the inset. Expression is in the differentiated mitral layer and is weak in the ventricular zone and granular layer.

Structure	Level	Pattern	Image	Note
TS26: cerebellum	Present	Regionally restricted	7A' , 7A	Expression is in the purkinje cell layer (more strongly) and the external granule cell layer and is absent in the molecular layer.
TS26: midbrain	Present	Regionally restricted	7A' , 7A	Expression is in the superior and inferior colliculi.