Your Query returns 6 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
perkNM_01012110090PEK    Eif2ak3    604032
PERKNM_0048369606PEK    WRS    EIF2AK3    604032
perkBC05480910090PEK    Eif2ak3    604032
PERKNM_1412817227DPERK    DmPEK    CG2087    EIF2-like    PEK   
PERKNT_0337777227DPERK    DmPEK    CG2087    EIF2-like    PEK   
perkAF4359536239

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

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Text2Knowledge ... Yong Huang 2002