Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
PROS-29NG_0001287227CG9327    pros29    CT26525    alpha3_dm    20S proteasome   
PROS-29NM_0573437227CG9327    pros29    alpha3_dm   
PROS-29NT_0337787227CG9327    pros29    alpha3_dm   

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

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Text2Knowledge ... Yong Huang 2002