Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
HisCl2NM_0796827227ora    hclA    GluCI    Hist1    CG7411    DmHisCl2    indefinite    ort   
HisCl2NT_0337777227ora    hclA    GluCI    Hist1    CG7411    DmHisCl2    indefinite    ort   

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

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Text2Knowledge ... Yong Huang 2002