Your Query returns 28 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
rpn2AL0317394896SPBC17D11.07c   
Rpn2AF3122317227
Rpn2AY0695037227
Rpn2AF4041125691
Rpn2BT0015987227
Rpn2NM_01964210090Rpn-2    1300012C06Rik    180490
Rpn2NW_04765910116
RPN2BC0035609606RIBIIR    RPN-II    180490
RPN2BC0202229606RIBIIR    RPN-II    180490
RPN2BC0023809606RIBIIR    RPN-II    180490
RPN2BC0130289606RIBIIR    RPN-II    180490
RPN2AL0316599606180490
RPN2AY4167609606180490
RPN2AY4167619598
RPN2AY41676210090180490
RPN2NM_0029519606RIBIIR    RPN-II    180490
Rpn2NT_03921010090180490
Rpn2BC010509100901300012C06Rik    180490
Rpn2BC04680610090180490
Rpn2BC06055610116
Rpn2AE0037687227
RPN2NT_0113629606180490
Rpn2NM_03169810116
rpn2BC0460527955wu:fj41f11    fj41f11    wu:fb74e07    fb74e07   
rpn2BC0666787955wu:fj41f11    fj41f11    wu:fb74e07    fb74e07   
Rpn2NM_1434207227p110    dRpn2    CG11888   
Rpn2NT_0337777227p110    dRpn2    CG11888   
RPN20N/ASEN3   

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

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Text2Knowledge ... Yong Huang 2002