Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Cpn2NM_00999110090Cyp11b    Cyp11b-2    Cyp11b2    603104
CPN2BC0536589606MGC16924    COPN2    CPNE2    603104
CPN2NM_0004989606ALDOS    CYP11B    CYP11BL    P-450C18    P450aldo    CYP11B2    603104
CPN2NM_1527279606COPN2    MGC16924    CPNE2    603104

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

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Text2Knowledge ... Yong Huang 2002