Your Query returns 8 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
IA-2NM_00898510090mIA-A    Ptprn   
IA-2BC0077139606IA-2/PTP    ICA512    R-PTP-N    IA2    PTPRN   
IA-2NM_0028469606IA2    ICA512    R-PTP-N    IA-2/PTP    PTPRN   
IA-2BC06402010090mIA-A    Ptprn   
Ia-2NM_05388110116ICA512    Ptprn   
Ia-2NM_01037910090IAb    Ia2    Abeta    H-2Ab    H2-Ab    I-A    I-Abeta    H2-Ab1   
IA-2BC06816510090mIA-A    Ptprn   
IA-2AF28881610090

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

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Text2Knowledge ... Yong Huang 2002