Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
PKBbetaNM_00743410090PKB    MGC14031    2410016A19Rik    Akt2   
PKBBETANM_0016269606PRKBB    RAC-BETA    AKT2   
PKBbetaBC04037710090PKB    MGC14031    Akt2   
PKBbetaBC02615110090PKB    MGC14031    Akt2   

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

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Text2Knowledge ... Yong Huang 2002