Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MYH12NM_0002599606GS1    MYO5    MYOXIN    MYO5A    160777
Myh12NM_02217810116Dop    Myo5a   
MYH12S747999606160777
MYH12Y077599606160777

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

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Text2Knowledge ... Yong Huang 2002