Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
ICA512BC0077139606IA-2    IA-2/PTP    R-PTP-N    IA2    PTPRN   
ICA512NM_0028469606IA2    IA-2    R-PTP-N    IA-2/PTP    PTPRN   
ICA512NM_05388110116Ia-2    Ptprn   

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

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Text2Knowledge ... Yong Huang 2002