rs1008708453

A SNP in the ABO gene on chromosome 9. Its most notable genotype is A;A: O2 alleles (ABO Type O) may be present

Gene
ABO
Location
Chr 9133,262,144 (GRCh38)
Highest magnitude
2.0Worth knowing
Tested on
Not on consumer chips

Genotypes

As shown in 23andMe and AncestryDNA files.

  1. A;AMost notableNot ratedO2 alleles (ABO Type O) may be presentWorth knowing · 2.0
  2. A;CNot ratedO2 ABO (type O) allele may be presentWorth knowing · 2.0

On SNPedia: (A;A), (A;C). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.

Notes

From SNPedia

Notes

ABO gene variant, known more commonly as c.53G>T or p.Arg18Leu. The rs1008708453(A) allele, as represented in dbSNP (and SNPedia) on the forward/plus strand, is reported to be completely correlated to a subtype of O type alleles known as the O2 group. These O alleles may lack the c.261delG allele that is associated with the majority of O alleles. Note that at this position, there is another variant, c.53G>A (p.Arg18Gln), which is not reported to have any particular ABO allelic association as far as we know.

A;A

see rs1008708453

A;C

see rs1008708453

Source and license

Adapted from rs1008708453 on SNPedia, using a snapshot taken October 16, 2026. SNPedia content is shared under CC BY-NC-SA 3.0 US, and this page is shared under the same license.

SNPedia is a community-edited wiki. Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice. Magnitude is a community rating of how interesting a genotype is, not a risk score.