Your Query returns 5 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MPP-6BC0052429606MPP6    MPP    MPHOSPH6   
MPP-6BC0110209606MPP6    MPP    MPHOSPH6   
MPP-6BC0310179606MPP6    MPP    MPHOSPH6   
MPP-6BC0293959606MPP6    MPP    MPHOSPH6   
MPP-6NM_0057929606MPP    MPP6    MPHOSPH6   

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

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Text2Knowledge ... Yong Huang 2002