Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MGC26563BC0240059606GST1    GSTM1-1    GSTM1a-1a    GSTM1b-1b    GTH4    GTM1    MU-1    MU    H-B    GSTM1   
MGC26563NM_0005619606MU    H-B    GST1    GTH4    GTM1    MU-1    GSTM1-1    GSTM1a-1a    GSTM1b-1b    GSTM1   
MGC26563NM_1464219606MU    H-B    GST1    GTH4    GTM1    MU-1    GSTM1-1    GSTM1a-1a    GSTM1b-1b    GSTM1   

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

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Text2Knowledge ... Yong Huang 2002