Even though fig.2aiii shows a comparable relative peak amplitude, which indicates both GOF and LOF rescue NMDA-EPSC in Grin2b-/- neurons, it looks to me that the absolute amplitude in fig.2aii shows a quite big difference in un-transferred groups which are supposed to be comparable, not as consistent as shown in fig.1ci.
The abstract is too long, which does not actually abstract the whole content very well.