Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Mhc-c[1]NM_0791367227Myo    zpr    E(br)    Mhc-c    MyoII    nmMHC    nmy-2    DROMHC    DmnmII    Myosin    CG15792    Dronm-MII    Myosin-II    l(2)02957    zip   
Mhc-c[1]NM_1667047227Myo    zpr    E(br)    Mhc-c    MyoII    nmMHC    nmy-2    DROMHC    DmnmII    Myosin    CG15792    Dronm-MII    Myosin-II    l(2)02957    zip   
Mhc-c[1]NT_0337787227Myo    zpr    E(br)    Mhc-c    MyoII    nmMHC    nmy-2    DROMHC    DmnmII    Myosin    CG15792    Dronm-MII    Myosin-II    l(2)02957    zip   

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

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Text2Knowledge ... Yong Huang 2002