rs104894412

A SNP in the GJB2 gene on chromosome 13. Its most notable genotype is G;T: knuckle pads, leukonychia, and deafness

Gene
GJB2
Location
Chr 1320,189,420 (GRCh38)
Highest magnitude
6.0Very important
Tested on
AncestryDNA

Genotypes

Plus strand, as in 23andMe and AncestryDNA files.

SNPedia records rs104894412 on the minus strand: (A;C), (C;C). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.

Conditions, medicines and genes

Notes

From SNPedia

Notes

See OMIM for a description of Bart-Pumphrey syndrome, and OMIM 121011.0030 for a discussion of this particular mutation, associated with knuckle pads, leukonychia, and deafness.

G;T

see discussion at rs104894412

Source and license

Adapted from rs104894412 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.