rs356165

A SNP in the SNCA gene on chromosome 4. Its most notable genotype is G;G: common in clinvar

Gene
SNCA
Location
Chr 489,725,735 (GRCh38)
Highest magnitude
0.0Typical
Tested on
23andMe
Minor allele frequency
49%

Genotypes

As shown in 23andMe and AncestryDNA files.

  1. G;GMost notableGoodcommon in clinvarTypical · 0.035% of people

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

Frequency

Share of each genotype in 4 HapMap populations.

  • AverageG;G 35%
  • European ancestry (Utah)G;G 19%
  • Han Chinese (Beijing)G;G 27%
  • Japanese (Tokyo)G;G 37%
  • Yoruba (Nigeria)G;G 57%

Notes

From SNPedia

Show notes, about 140 words

rs356165 is a SNP in the 3' UTR of the alpha-synuclein SNCA gene. It has been associated in some studies, and not others, with Parkinson's disease. A study of 330 Chinese with Parkinson's found no association with rs356165 and risk for Parkinson's. Linkage disequilibrium patterns and tagSNP transferability among European populations. Familial genes in sporadic disease: common variants of alpha-synuclein gene associate with Parkinson's disease. alpha-Synuclein and Parkinson disease susceptibility. Genetic susceptibility in Parkinson's disease. Genetic variants of the alpha-synuclein gene SNCA are associated with multiple system atrophy. Alpha-synuclein polymorphisms are associated with Parkinson's disease in a Saskatchewan population. An evaluation of the impact of MAPT, SNCA and APOE on the burden of Alzheimer's and Lewy body pathology.

Source and license

Adapted from rs356165 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.