Fig. 1.
Effect of forskolin or PDBu on the phosphorylation of the NR1 subunit of the NMDA receptor. Nucleus accumbens slices, which had been prelabeled with [32P]phosphate for 60 min, were incubated for 5 min with various concentrations of either forskolin (A) or PDBu (B). Autoradiogram shows incorporation of [32P]phosphate into NR1. Arrowindicates the protein band corresponding to NR1.