Calretinin, calbindin-D28k and parvalbumin-like immunoreactivity in mouse chemoreceptor neurons.

Calretinin immunoreactivity was demonstrated in adult mouse olfactory receptor neurons and in the vomeronasal and septal chemoreceptor neurons, whereas parvalbumin expression was restricted to the vomeronasal receptor neurons. Calbindin-D28k-like immunoreactivity was primarily localized in the vomeronasal and septal chemoreceptor neurons although an occasional neuronal staining with calbindin-D28k was also found in restricted areas of the main olfactory epithelium.