Your Query returns 17 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
uba2AL0221044896SPBC16H5.03c   
UBA2NM_01668210090Arx    SAE2    UBA1    Ubl1a2    Uble1b   
UBA2BC05476810090UBA1    Ubl1a2    Arx    SAE2    Uble1b   
Uba2AY1133617227
Uba2AF1935537227
UBA2U405663702
UBA2U322744932
UBA2BC0031539606SAE2   
UBA2AF0903849606
UBA2AF0795669606
UBA2NM_0054999606SAE2   
uba2NC_0034234896SPBC16H5.03c   
Uba2AE0035567227
UBA2NT_0111099606
Uba2NM_0800177227L36    SAE2    Ubc2    sip2    dUba2    CG7528    DmSAE2    DmUba2   
Uba2NT_0374367227L36    SAE2    Ubc2    sip2    dUba2    CG7528    DmSAE2    DmUba2   
UBA2NC_0011364932UAL1   

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

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Text2Knowledge ... Yong Huang 2002