Your Query returns 6 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Act-2NM_01365210090Mip1b    Scya4    MIP-1B    AT744.1    Ccl4   
Act-2NM_0029849606ACT2    LAG1    MIP1B    SCYA4    AT744.1    MIP-1-beta    CCL4   
act-2NC_0032836239T04C12.5    CELK02147   
act-2NM_0734176239T04C12.5    CELK02147   
act-2NC_000917224325
act-2Z815846239

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

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Text2Knowledge ... Yong Huang 2002