Your Query returns 19 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Herpud1NM_02233110090SUP    Herp    608070
HERPUD1AB0349899606608070
HERPUD1AB0349909606608070
Herpud1NW_04753110116
HERPUD1BC0083209606KIAA0025    HERP    SUP    Mif1    608070
HERPUD1BC0000869606KIAA0025    HERP    SUP    Mif1    608070
HERPUD1BC0097399606KIAA0025    HERP    SUP    Mif1    608070
HERPUD1BC0326739606KIAA0025    HERP    SUP    Mif1    608070
HERPUD1AY4118859606608070
HERPUD1AY4118869598
HERPUD1AY41188710090608070
HERPUD1NM_0146859606SUP    HERP    Mif1    KIAA0025    608070
Herpud1AB03499110090608070
Herpud1NT_07858610090608070
Herpud1AJ32051910090608070
Herpud1BC01352310090SUP    Herp    608070
Herpud1BC06184910116Sup   
HERPUD1NT_0104989606608070
Herpud1NM_05352310116Sup   

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

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Text2Knowledge ... Yong Huang 2002