Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MPK-9NM_14894510090Rsk2    pp90RSK2    S6K-alpha3    Rps6ka3   
Mpk-9X5723710090

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

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Text2Knowledge ... Yong Huang 2002