Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
bactin1BC0458467955bact    B-ACTZF    ACTB    bactzf   
bactin1BC0639507955bact    B-ACTZF    ACTB    bactzf    fd18f05    wu:fd18f05   
bactin1NM_1310317955ACTB    bact    bactzf    B-ACTZF    fd18f05    wu:fd18f05   

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

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Text2Knowledge ... Yong Huang 2002