Your Query returns 10 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Acas2lNM_08057510090Acas2    AceCS2    1110032O15Rik   
ACAS2LBC0445889606AceCS2L    MGC33843   
ACAS2LBC0550089606AceCS2L    MGC33843   
ACAS2LBC0392619606AceCS2L    MGC33843   
ACAS2LNM_0325019606AceCS2L    MGC33843   
ACAS2LNM_1747469913
Acas2lNT_03921010090
Acas2lBC00409710090AceCS2   
Acas2lBC03093010090AceCS2   
ACAS2LNT_0113879606

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

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Text2Knowledge ... Yong Huang 2002