Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MAPKAPK1CBC0023639606HU-2    RSK    RSK3    RPS6KA2   
MAPKAPK1CNM_0211359606RSK    HU-2    RSK3    RPS6KA2   

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

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Text2Knowledge ... Yong Huang 2002