Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MAPKAPK1ABC0149669606HU-1    RSK    RSK1    RPS6KA1   
MAPKAPK1ANM_0029539606RSK    HU-1    RSK1    RPS6KA1   

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

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Text2Knowledge ... Yong Huang 2002