Your Query returns 5 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
mes-2AF0118936239wild type   
mes-2NC_0032806239R06A4.7    CELK00790   
mes-2NM_0645916239R06A4.7    CELK00790   
mes-2Z831206239
mes-2Z815156239

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

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Text2Knowledge ... Yong Huang 2002