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Stands on its own.
Nothing else here links to this position yet — but the page above is the point: what the
research found, what each genotype means, and where it came from, in language you can
read. Links to conditions, drugs and the senses appear automatically if we write them.
What the study found
Who was studied 408,112 British individuals.
The effect
Each copy of the G allele shifted the measure 0.0294 higher (95% confidence interval 0.021-0.038); p = 9 × 10−12.
How common The G allele had a frequency of about 8% in the people studied.
Where it sits Chromosome 9, band 9q32 — a missense change in ALAD.
What ClinVar records
ClassificationBenign/Likely benign for ALAD*1/ALAD*2 POLYMORPHISM, Porphobilinogen synthase deficiency; criteria provided, multiple submitters, no conflicts (2 of 4 stars, 8 submitters), last evaluated 2026-01-28.
ClinVar record 16864NM_000031.6(ALAD):c.177G>C (p.Lys59Asn)
What this is ClinVar's aggregate record for this position (as of its 2026-10-12 release), not a result about you. A classification describes the variant against the condition named, as laboratories submitted it. Whether a person carries this variant, and what that would mean for them, is a question for a clinical test and a genetic counsellor.
What each result means
C/CNo copy of the version the research linked to Reticulocyte count. This is the starting point the study compared everyone against.
C/GOne copy of the version the research linked to Reticulocyte count. That is a smaller link than two copies.
G/GTwo copies of the version the research linked to Reticulocyte count. That is the strongest link of the three results. A link in a study is not a diagnosis.
rs1800435 is a single position in the genome, in or near the ALAD gene. Published research associates it with reticulocyte count. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.
Does having rs1800435 mean I will get this?
No. Common variants like this one move a probability slightly and, on their own, rarely decide anything about one person. Nothing on this page is a diagnosis, and health decisions should be made with a clinician who can see your whole picture.
Where does the information about rs1800435 come from?
GWAS Catalog, Cell 2020, PMID:32888494. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.
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