Your Query returns 17 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Arpc1bNM_02314210090L72    41kDa    SOP2Hs    p41-ARC   
Arpc1bNW_04736810116
ARPC1BBC0029889606ARC41    p40-ARC    p41-ARC   
ARPC1BBC0075559606ARC41    p40-ARC    p41-ARC   
ARPC1BBC0025629606ARC41    p40-ARC    p41-ARC   
ARPC1BAY4078719606
ARPC1BAY4078729598
ARPC1BAY40787310090
ARPC1BNM_0057209606ARC41    p40-ARC    p41-ARC   
Arpc1bAF16276810090
Arpc1bNT_03932410090
Arpc1bBC00344110090SOP2Hs    p41-ARC    L72    41kDa   
Arpc1bBC01027510090SOP2Hs    p41-ARC    L72    41kDa   
Arpc1bBC06202710116
Arpc1bNM_01928910116
ARPC1BNT_0079339606
ARPC1BNT_0795959606

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

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Text2Knowledge ... Yong Huang 2002