Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
dpms2NG_0004107227Mlh2    dmlh2    CG8169    dmlh-2    CT21953    Pms2   
dpms2NM_0576757227Mlh2    pms2    dmlh2    CG8169    dmlh-2   
dpms2NT_0337787227Mlh2    pms2    dmlh2    CG8169    dmlh-2   

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

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Text2Knowledge ... Yong Huang 2002