Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
arrestin-2NM_079252722749    AH    PRI    ArrB    arr2    CG5962    ArrB-ml    arrestin    arrestin2   
arrestin-2NT_037436722749    AH    PRI    ArrB    arr2    CG5962    ArrB-ml    arrestin    arrestin2   

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

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Text2Knowledge ... Yong Huang 2002