rs868403743

A SNP. Its most notable genotype is C;T: Marfan syndrome (predicted)

Gene
None listed
Highest magnitude
6.6Very important
Tested on
Not on consumer chips

Genotypes

As shown in 23andMe and AncestryDNA files.

  1. C;CGoodcommon/normalTypical · 0.0
  2. C;TMost notableBadMarfan syndrome (predicted)Very important · 6.6

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

Conditions, medicines and genes

Notes

From SNPedia

Notes

aka c.442+1G>A Considered in ClinVar to be a dominant mutation leading to Marfan syndrome; also reported as a possible mutation seen in sudden cardiac death

C;T

see text and links via main rs-page

Source and license

Adapted from rs868403743 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.