Your Query returns 21 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
GefNM_01378910090Gnef    DelGEF    Gnefr   
GEFBC0205679606LFP40    GEF-H1    KIAA0651    P40    DKFZp547L106    GEFH1    ARHGEF2   
GEFBC0523069606SLC2A4RG   
GEFBC0014029606SLC2A4RG   
GEFBC0283499606SLC2A4RG   
GEFNM_0047239606P40    GEFH1    LFP40    GEF-H1    KIAA0651    DKFZp547L106    ARHGEF2   
GEFBC00658910090Lfc    P40    GEFH1    LFP40    GEF-H1    Arhgef2   
GEFNM_0200629606HDBP1    SLC2A4RG   
GEFNM_00848710090Lfc    P40    GEFH1    LFP40    Lbcl1    GEF-H1    mKIAA0651    Arhgef2   
gefD10483562
gefAE00011283333b0018   
gefAE005178155864Z0016   
gefAF38755077133
gefX17311562
gefAE016978198215
gefAE00517483334Z0016   
GefAJ2388999606
gefAJ23889810090
gefNC_00091383333
gefNC_002655155864
gefNC_004741198215

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

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Text2Knowledge ... Yong Huang 2002