Your Query returns 8 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
U2af2NM_1336711009065kDa   
U2AF2BC0087409606U2AF65   
U2AF2BC0305749606U2AF65   
U2af2NT_03938510090
U2af2BC0074871009065kDa   
U2af2BC0430711009065kDa   
U2AF2NT_0111099606
U2AF2NM_0072799606U2AF65   

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

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Text2Knowledge ... Yong Huang 2002