Your Query returns 7 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Rpn5AY0583397227
Rpn5AF4109305691
RPN5Z741954932
Rpn5AE0036017227
Rpn5NM_1413317227p55    CG1100   
Rpn5NT_0337777227p55    CG1100   
RPN5NC_0011364932NAS5   

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

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Text2Knowledge ... Yong Huang 2002