Your Query returns 6 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
nocturninNM_00983410090Ccr4    Ccrn4l   
NocturninAF19949110090
nocturninAE0036907227
nocturninNM_1693747227CG4782    CG4796    CG31299    nocturin   
nocturninNM_1693757227CG4782    CG4796    CG31299    nocturin   
nocturninNT_0337777227CG4782    CG4796    CG31299    nocturin   

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

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Text2Knowledge ... Yong Huang 2002