Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Prosbeta2AY0519767227
Prosbeta2AE0035327227
Prosbeta2NM_0793527227DTS7    DTS-7    beta2    CG3329    beta2_dm    l(3)DTS7   
Prosbeta2NT_0374367227DTS7    DTS-7    beta2    CG3329    beta2_dm    l(3)DTS7   

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

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Text2Knowledge ... Yong Huang 2002