Your Query returns 14 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
HLA-DRB1*0801AF1424499606HLA-DRB1   
HLA-DRB1*0801AF4918439606HLA-DRB1   
HLA-DRB1*0801AH0106129606HLA-DRB1   
HLA-DRB1*0801AY0285149606HLA-DRB1   
HLA-DRB1*0801AY0285159606HLA-DRB1   
HLA-DRB1*0801AH0106139606HLA-DRB1   
HLA-DRB1*0801AY0285169606HLA-DRB1   
HLA-DRB1*0801AY0285179606HLA-DRB1   
HLA-DRB1*0801AH0106149606HLA-DRB1   
HLA-DRB1*0801AY0285189606HLA-DRB1   
HLA-DRB1*0801AY0285199606HLA-DRB1   
HLA-DRB1*0801M961289606
HLA-DRB1*0801L781669606
HLA-DRB1*0801X696009606

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

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Text2Knowledge ... Yong Huang 2002