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| PR:000001821 | MHC class II histocompatibility antigen beta chain | | |  | | |
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| PR:000002019 | MHC class II histocompatibility antigen beta chain DRB1 | | |  | | |
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| PR:P01911 | HLA class II histocompatibility antigen, DRB1 beta chain (human) | | |  | | |
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| PR:P13761 | HLA class II histocompatibility antigen, DRB1-7 beta chain (human) | | |  | | |
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| PR:P01911 | HLA class II histocompatibility antigen, DRB1 beta chain (human) | | |  | | |
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| PR:P13761 | HLA class II histocompatibility antigen, DRB1-7 beta chain (human) | | |  | | |