cellular localization of GluR 1–3 subunits in motneurons in the cervical spinal spinal cord of four-week-old wobbler mice. LEFT COLUMN (A, D, G). Panels A, D, G, show the profile of Nissl staining (red) in large neurons localized in the lamina IX of the cervical spinal cord of four-week-old wobbler mouse. CENTRAL COLUMN (B, E, H). Central panels show the staining for the three different AMPA receptor subunits, GluR1 (B), GluR2 (E), GluR3 (H) (green) in lamina IX of the cervical spinal cord of four-week-old wobbler mouse. RIGHT COLUMN (C, F, I). Panels C, F, I show the localisation of GluR1 (C), GluR2 (F) and GluR3 (I) in Nissl-positive large neurons of the lamina IX. Jellow staining is the area of merge between Nissl and AMPA receptor subunits. Scale bar, 15 μm.