Your Query returns 16 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Ap2m1BC0495157955MGC56643    zgc:56643   
Ap2m1NM_2010267955MGC56643    zgc:56643   
Ap2m1NT_08235910090601024
Ap2m1NM_00967910090601024
Ap2m1NW_04735810116
AP2M1BC0049969606CLAPM1    AP50    601024
AP2M1BC0140309606CLAPM1    AP50    601024
AP2M1BC0137969606CLAPM1    AP50    601024
AP2M1AY4199559606601024
AP2M1AY4199569598
AP2M1AY41995710090601024
AP2M1NM_0040689606AP50    CLAPM1    601024
Ap2m1NT_03962410090601024
Ap2m1BC05635210090601024
AP2M1NT_0056129606601024
Ap2m1NM_05383710116Ap50   

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

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Text2Knowledge ... Yong Huang 2002