rs118192170
A SNP in the RYR1 gene on chromosome 19. Its most notable genotype is C;T: susceptibility to malignant hyperthermia
- Gene
- RYR1
- Location
- Chr 1938,584,989 (GRCh38)
- Highest magnitude
- 3.0Important
- Tested on
- AncestryDNA
Genotypes
As shown in 23andMe and AncestryDNA files.
- C;TMost notableBadsusceptibility to malignant hyperthermia
- T;TGoodcommon in complete genomics
On SNPedia: (C;T), (T;T). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.
Related
Conditions, medicines and genes
Other RYR1 SNPs
- rs118192177C;TMalignant Hyperthermia susceptibilityVery important
- rs146876145C;TMalignant Hyperthermia susceptibilityVery important
- rs28933396A;Aquite likely to have central core diseaseVery important
- rs118192168A;Alikely severe central core diseaseVery important
- rs118192171AC;TTlikely severe central core diseaseVery important
- rs63749869A;Glikely severe central core diseaseVery important
- rs118192169-;TTCTACAACAAGAGCGAGGATlikely severe central core diseaseVery important
- rs193922781C;Tmalignant hyperthermiaVery important
Notes
From SNPedia
Notes
rs118192170, aka p.Ile4898Thr or p.I4898T, is a SNP in the RYR1 gene associated with both malignant hyperthermia and central core disease when heterozygous. 23andMe name: i6017636
C;T
You may be at higher risk for a bad response to anesthetics.
Source and license
Adapted from rs118192170 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.