Your Query returns 18 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
agoutiSEG_AB045588S10116
agoutiSEG_AB045588S10116
agoutiAB04558810116
agoutiAB04558910116
agoutiNM_01577010090As    ASP    A    ASIP   
agoutiBC00912210090ASIP    ASP   
agoutiAJ2501019627
agoutiX996919913
agoutiX996929913
agoutiAJ2503649627
agoutiAY2914429925
agoutiAH0054469606
agoutiU127709606
agoutiU127749606
agoutiU127759606
agoutiL7647510090
agoutiL7647610090
AGOUTINM_2068439913ASIP   

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

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Text2Knowledge ... Yong Huang 2002