Table 2.
Group of neurons based on expression of calcium buffering proteins, location and derivation from embryonic V1 interneurons.
| GROUP | Ca-buffering protein (intensity of IR)1 | Location | Percentage V1-derived2 |
|---|---|---|---|
| Group 1 | Calbindin (++++) Parvalbumin (++) Calretinin (+) |
Ventral LVII Ventral LIX |
100% |
| Group 2 | Calbindin (+) | Lateral LVII | 50% |
| Group 3 | Calbindin (++, +++) | Dorsomedial LVII | 0% |
| Group 4 | Parvalbumin (+++) LIX |
Lateral LVII | 83–90% |
| Group 5 | Parvalbumin (++, +++) | Ventromedial LVII | 11–12% |
| Group 6 | Parvalbumin (++, +++) Calretinin (++, +++) |
Ventromedial LVII | 1–3% |
| Group 7 | Calretinin (++, +++) | Ventromedial LVII | 1–3% |
1
++++ Very strongly immunoreactive in all neurons.
+++ Intensely immunoreactive in most neurons.
++ Moderately immunoreactive, many neurons.
+ Weakly immunoreactive, few neurons.
2
ranges are given in cell groups with wide dorso-ventral or medio-lateral distributions and are indicative of the maximum and minimum estimates in the different 100 ^m bins.