Your Query returns 14 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
NMDA1NM_0008329606NR1    NMDAR1    GRIN1   
NMDA1NM_0073279606NR1    NMDAR1    GRIN1   
NMDA1NM_0215699606NR1    NMDAR1    GRIN1   
Nmda1AY0603467227
Nmda1BT0014137227
Nmda1BT0031757227
Nmda1AE0038207227
Nmda1NM_0789987227cDNA2    CG3798    DRONMDA    NMDARA1    dNMDARA1   
Nmda1NM_1659567227cDNA2    CG3798    DRONMDA    NMDARA1    dNMDARA1   
Nmda1NM_1659577227cDNA2    CG3798    DRONMDA    NMDARA1    dNMDARA1   
Nmda1NM_1659587227cDNA2    CG3798    DRONMDA    NMDARA1    dNMDARA1   
Nmda1NM_1659597227cDNA2    CG3798    DRONMDA    NMDARA1    dNMDARA1   
Nmda1NM_1659607227cDNA2    CG3798    DRONMDA    NMDARA1    dNMDARA1   
Nmda1NT_0337787227cDNA2    CG3798    DRONMDA    NMDARA1    dNMDARA1   

Search Again
* OMIM link based on symbol match for human and mouse.

Google

Text2Knowledge ... Yong Huang 2002