Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
ACTSGBC0126179606ACTA3    ACTE    ACTG2   
ACTSGNM_0016159606ACTE    ACTA3    ACTG2   

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

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Text2Knowledge ... Yong Huang 2002