| Variation | | Type (Consequence) | Condition | Classification, Review status |
|---|
| | | Single nucleotide variant (missense variant +3 more) | Severely weakened expression of B on erythrocytes | |
| | | Single nucleotide variant (missense variant +2 more) | Severely weakened expression of B on erythrocytes | |
| | | Single nucleotide variant (missense variant +3 more) | Severely weakened expression of B on erythrocytes | |
| | | Single nucleotide variant (missense variant +1 more) | ABO blood group system | |
| | | Single nucleotide variant (missense variant) | Not Specified | Gno classification for the single variant Sno classification for the single variant Ono classification for the single variant |
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