rs3810141

A SNP in the BCAM gene on chromosome 19. Its most notable genotype is A;A: Lutheran null blood; Lu(a-b-) phenotype

Gene
BCAM
Location
Chr 1944,813,547 (GRCh38)
Highest magnitude
3.0Important
Tested on
AncestryDNA
Minor allele frequency
6%

Genotypes

Plus strand, as in 23andMe and AncestryDNA files.

  1. C;CGoodcommon in clinvarTypical · 0.0
  2. A;CNot ratedCarrier of a Lutheran null blood group variantWorth knowing · 2.0
  3. A;AMost notableNot ratedLutheran null blood; Lu(a-b-) phenotypeImportant · 3.0

SNPedia records rs3810141 on the minus strand: (G;G), (G;T), (T;T). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.

Other BCAM SNPs

All BCAM SNPs

Notes

From SNPedia

Notes

aka c.711C>A (p.Cys237Ter); note a benign, synonymous variant, c.711C>T, is also known Lutheran Null blood group mutation 23andMe name for c.711C>A variant: i5000663

A;C

Unaffected in absence of a second BCAM gene mutation

A;A

see text and links via main rs-page

Source and license

Adapted from rs3810141 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.