Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
L72NM_0231421009041kDa    SOP2Hs    p41-ARC    Arpc1b   
L72BC00344110090SOP2Hs    p41-ARC    41kDa    Arpc1b   
L72BC01027510090SOP2Hs    p41-ARC    41kDa    Arpc1b   

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

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Text2Knowledge ... Yong Huang 2002