Your Query returns 5 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
AceCS2NM_08057510090Acas2    1110032O15Rik    Acas2l   
AceCS2BC00409710090Acas2l   
AceCS2BC03093010090Acas2l   
AceCS2AB0467419913
AceCS2AB04674210090

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

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Text2Knowledge ... Yong Huang 2002