Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
GEF-H1BC0205679606LFP40    KIAA0651    P40    GEF    DKFZp547L106    GEFH1    ARHGEF2   
GEF-H1NM_0047239606GEF    P40    GEFH1    LFP40    KIAA0651    DKFZp547L106    ARHGEF2   
GEF-H1BC00658910090Lfc    GEF    P40    GEFH1    LFP40    Arhgef2   
GEF-H1NM_00848710090GEF    Lfc    P40    GEFH1    LFP40    Lbcl1    mKIAA0651    Arhgef2   

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

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Text2Knowledge ... Yong Huang 2002