Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
RNF48BC0161749606API1    MIHB    HIAP2    CIAP1    BIRC2   
RNF48BC0285789606API1    MIHB    HIAP2    CIAP1    BIRC2   
RNF48NM_0011669606API1    MIHB    CIAP1    HIAP2    BIRC2   
RNF48NM_00746510090Api1    Api2    IAP1    IAP2    MIHB    MIHC    Birc3    HIAP1    HIAP2    MIAP1    MIAP2    cIAP1    cIAP2    cIAP-1    cIAP-2    mcIAP1    Birc2   

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

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Text2Knowledge ... Yong Huang 2002