Antibody:	anti-Calbindin D28k (CB-38), rabbit
Detection system:	Secondary antibody coupled to rhodamine

Structure	Cell Type	Level	Pattern	Image	Note
TS21: telencephalon	neuron of the forebrain	Present	Regionally restricted	3L , 3H , 3K , 3A , 3J , 3G , 3D , 3C , 3N , 3E	Expression was detected in a migratory stream from the caudal ganglionic eminence to the caudal cortex and hippocampus. A majority of the migrating neurons were positive for both Nr2f2 and Calb1 (71% of the Calb1 cells).
TS21: caudal ganglionic eminence	neuron of the forebrain	Present		3A , 3G , 3D , 3C , 3E
TS21: cerebral cortex	neuron of the forebrain	Present	Regionally restricted	3K , 3N , 3A , 3J , 3L , 3H , 3C	Expression was detected in the caudal cortex. A large population (56.8%) of Calb1+ migrating cells continued to express a lower level of Nr2f2.

Structure	Level	Pattern	Image	Note
TS21: caudal ganglionic eminence	Present	Non-Uniform	6I , 6G , 6F , 6D , 6C , 6A	Two cohorts of Calb1 immunopositive cells were identified. A caudal population co-labeled with Nr2f2 (64.4% of cells), and a rostral population that tended to be Nr2f2-negative (only 14.4% of cells were co-labeled).

Structure	Level	Pattern	Image	Note
TS23: cerebral cortex	Present	Regionally restricted	S2A , S2D , S2B	A large portion of Calb1+ cells in the caudal cortex co-stain weakly for Nr2f2.