| Reports of presence of alpha4-2 nAChR in: PAG. |
| Cell pool position in region | Hemisphere | Qualitative density of alpha4-2 nAChR in PAG | Annotation | Reference | Collator |
| not specified | bilateral | light | Alpha4 and beta2 appear to be expressed at relatively low levels throughout the central gray and the various nuclei that are embedded within it, in striking contrast to alpha2 and alpha3. Collator note: see Table 2 pages 320-324. | Wada, E., Wada, K., Boulter, J., Deneris, E., Heinemann, S., Patrick, J. & Swanson, L.W., 1989 | Metadata |
| in situ hybridization data |
