rs137853153

A SNP in the BLM gene on chromosome 15. Its most notable genotype is T;T: Bloom syndrome; homozygote for mutation

Gene
BLM
Location
Chr 1590,794,254 (GRCh38)
Highest magnitude
6.6Very important
Tested on
AncestryDNA

Genotypes

As shown in 23andMe and AncestryDNA files.

  1. G;GGoodcommon in clinvarTypical · 0.0
  2. G;TBadcarrier of likely Bloom syndrome alleleImportant · 3.0
  3. T;TMost notableBadBloom syndrome; homozygote for mutationVery important · 6.6

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

Other BLM SNPs

All BLM SNPs

Notes

From SNPedia

Notes

aka c.3107G>T (p.Cys1036Phe)

Source and license

Adapted from rs137853153 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.