Your Query returns 6 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MPR-S12BC0074999606RPMS12    RPSM12    MT-RPS12    RPS12    MRPS12   
MPR-S12BC0016179606RPMS12    RPSM12    MT-RPS12    RPS12    MRPS12   
MPR-S12NM_0211079606RPS12    RPMS12    RPSM12    MT-RPS12    MRPS12   
MPR-S12NM_0333639606RPS12    RPMS12    RPSM12    MT-RPS12    MRPS12   
MPR-S12NM_0333629606RPS12    RPMS12    RPSM12    MT-RPS12    MRPS12   
MPR-S12BC0064249606RPMS12    RPSM12    MT-RPS12    RPS12    MRPS12   

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

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Text2Knowledge ... Yong Huang 2002