rs666

A SNP in the APOH gene on chromosome 17. Its most notable genotype is C;C: common in complete genomics

Gene
APOH
Location
Chr 1766,228,153 (GRCh38)
Highest magnitude
0.0Typical
Tested on
Not on consumer chips

Genotypes

Plus strand, as in 23andMe and AncestryDNA files.

  1. C;CMost notableGoodcommon in complete genomicsTypical · 0.0

SNPedia records rs666 on the minus strand: (G;G). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.

Other APOH SNPs

All APOH SNPs

Notes

From SNPedia

Notes

this is not a real snp. There is actually a real rs666, which looks to be a very nice and completely boring snp. If you are seeing this in a report, relax. This is only a test. rs666 is a fictional snp is used to represent the worst thing you can imagine. A single copy of the (A) allele will have this terrible effect. If you are rs666(A;A) we can be almost certain that this terrible thing will affect both of your parents and all of your children. If you reveal your rs666(A;A) status, you would be revealing their rs666(A) status also. If you can think of other ways to help people understand this negative aspect of genetics, please add to this page. see also rs1234

Source and license

Adapted from rs666 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.