Your Query returns 21 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
UBE2IAY1208689913
ube2iNM_1313517955ubc9    zUbc9   
Ube2iNM_01166510090UBC9    Ubce9    Mmubc9    5830467E05Rik    601661
UBE2IAE0064669606601661
Ube2iNW_04733410116
Ube2iNM_01305010116UbcE2A   
UBE2IBC0004279606UBC9    P18    C358B7.1    601661
UBE2IBC0512899606UBC9    P18    C358B7.1    601661
UBE2IBC0044299606UBC9    P18    C358B7.1    601661
UBE2IAY4213389606601661
UBE2IAY4213399598
UBE2IAY42134010090601661
UBE2IU453289606601661
UBE2INM_0033459606P18    UBC9    C358B7.1    601661
UBE2INM_1942599606P18    UBC9    C358B7.1    601661
UBE2INM_1942609606P18    UBC9    C358B7.1    601661
UBE2INM_1942619606P18    UBC9    C358B7.1    601661
Ube2iNT_03964910090601661
Ube2iBC03763510090Mmubc9    UBC9    5830467E05Rik    601661
UBE2INT_0378879606601661
UBE2INM_2042659031

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

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Text2Knowledge ... Yong Huang 2002