Your Query returns 11 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Arhgef1NM_00848810090Lsc    Lbcl2    601855
ARHGEF1BC0340139606P115-RHOGEF    SUB1.5    LBCL2    GEF1    601855
ARHGEF1BC0051559606P115-RHOGEF    SUB1.5    LBCL2    GEF1    601855
ARHGEF1BC0117269606P115-RHOGEF    SUB1.5    LBCL2    GEF1    601855
ARHGEF1NM_0047069606GEF1    LBCL2    SUB1.5    P115-RHOGEF    601855
ARHGEF1NM_1989779606GEF1    LBCL2    SUB1.5    P115-RHOGEF    601855
ARHGEF1NM_1990029606GEF1    LBCL2    SUB1.5    P115-RHOGEF    601855
Arhgef1NT_03941310090601855
Arhgef1BC01248810090Lsc    601855
ARHGEF1NT_0111099606601855
ARHGEF1BC0672629606P115-RHOGEF    SUB1.5    LBCL2    GEF1    601855

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

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Text2Knowledge ... Yong Huang 2002