Your Query returns 6 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MacMARCKSNM_01080710090F52    Mrp    D4Bc1    Macs2    Macs3    Macs-2    Macs-3    Mlp   
MACMARCKSBC0079049606F52    MLP1    MRP    MLP   
MACMARCKSNM_0230099606F52    MRP    MLP1    MLP   
MacMARCKSBC00675710090D4Bc1    F52    Mlp   
MACMARCKSBC0669159606F52    MLP1    MRP    MLP   
MacMARCKSX703269606

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

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Text2Knowledge ... Yong Huang 2002