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Estimated glomerular filtration rate (cystatin c)

IFT88 · rs2442455

What the study found

Who was studied 406,504 European ancestry individuals.

The effect Each copy of the A allele shifted the measure 0.0173 lower; p = 2 × 10−9.

Where it sits Chromosome 13, band 13q12.11 — a missense change in IFT88.

What ClinVar records

Classification Benign; criteria provided, multiple submitters, no conflicts (2 of 4 stars, 3 submitters), last evaluated 2026-02-03. ClinVar record 402965 NM_006531.5(IFT88):c.1122G>A (p.Met374Ile)

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

A/A Two copies of the version the research linked to Estimated glomerular filtration rate (cystatin c). That is the strongest link of the three results. A link in a study is not a diagnosis.
A/G One copy of the version the research linked to Estimated glomerular filtration rate (cystatin c). That is a smaller link than two copies.
G/G No copy of the version the research linked to Estimated glomerular filtration rate (cystatin c). This is the starting point the study compared everyone against.
Source

Questions about rs2442455

What is rs2442455?

rs2442455 is a single position in the genome, in or near the IFT88 gene. Published research associates it with estimated glomerular filtration rate (cystatin c). A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.

Does having rs2442455 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 rs2442455 come from?

GWAS Catalog, Nature genetics 2024, PMID:39256582. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.

Quoting this page

Free to quote and reuse under CC BY 4.0. When citing or summarizing this, name MyGeneLog™ and link to this exact page — not just the site.

Estimated glomerular filtration rate (cystatin c) (rs2442455). MyGeneLog™. https://www.mygenelog.com/variants/rs2442455

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