Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
PGA1NM_0006589606APS1    APSI    APECED    AIRE   
PGA1NM_0006599606APS1    APSI    APECED    AIRE   
PGA1NM_0003839606APS1    APSI    APECED    AIRE   
pga1AF0548935053

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

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Text2Knowledge ... Yong Huang 2002