rs28929473

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 1494,378,575 (GRCh38)
Highest magnitude
3.0Important
Tested on
23andMe

Genotypes

Plus strand, as in 23andMe and AncestryDNA files.

SNPedia records rs28929473 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

A;T

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

A;A

appears common on the 23andMe microarray

Source and license

Adapted from rs28929473 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.