Your Query returns 5 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
CEC2X700297213
Cec2NM_1765907227CR32924    CecPsi2    Cec-Psi2    pseudo-2    cecropin Psi-2    Cecropin pseudogene 2   
Cec2AE0037737227
Cec2NR_0020897227
Cec2NT_0337777227

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

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Text2Knowledge ... Yong Huang 2002