rs1800435
A SNP in the ALAD gene on chromosome 9. Its most notable genotype is C;G: Carrier of an ALAD deficiency porphyria mutation
- Gene
- ALAD
- Location
- Chr 9113,391,611 (GRCh38)
- Highest magnitude
- 3.0Important
- Tested on
- 23andMe, AncestryDNA
- Minor allele frequency
- 5%
Genotypes
Plus strand, as in 23andMe and AncestryDNA files.
SNPedia records rs1800435 on the minus strand: (C;G), (G;G). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.
Frequency
Share of each genotype in one HapMap population.
- Yoruba (Nigeria)C;G 0% C;C 100%
Related
Other ALAD SNPs
- rs121912980C;TCarrier of an ALAD deficiency porphyria mutationImportant
- rs121912981C;TCarrier of an ALAD deficiency porphyria mutationImportant
- rs121912982A;GCarrier of an ALAD deficiency porphyria mutationImportant
- rs121912983C;TCarrier of an ALAD deficiency porphyria mutationImportant
- rs749066913A;GCarrier of an ALAD deficiency porphyria mutationImportant
Notes
From SNPedia
Notes
C;G
Unaffected in absence of a second mutation in the ALAD gene; see links via main rs-page and the ALAD gene page
Source and license
Adapted from rs1800435 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.