rs28931572

A SNP in the SERPINA1 gene on chromosome 14. Its most notable genotype is A;T: carrier for Alpha-1 Antitrypsin Deficiency

Gene
SERPINA1
Location
Chr 1494,382,891 (GRCh38)
Highest magnitude
3.0Important
Tested on
23andMe, AncestryDNA

Genotypes

Plus strand, as in 23andMe and AncestryDNA files.

SNPedia records rs28931572 on the minus strand: (A;A), (A;T), (T;T). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.

Notes

From SNPedia

Notes

T;T

appears common on the 23andMe microarray

A;T

1 copy of a rare Alpha-1 Antitrypsin Deficiency null allele; likely to be unaffected unless also carrying another null variant.

Source and license

Adapted from rs28931572 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.