Standard

Fasting glucose

SLC2A2 · rs5400

Where this position leads

Drug: Metformin

rs5400 Drug: Metformin Metformin Drug rs5400 rs5400 SLC2A2

What the study found

Who was studied 10,177 African American individuals, 651 East Asian ancestry individuals, 113,279 European ancestry individuals, 3,153 Hispanic individuals, 2,405 South Asian ancestry individuals.

The effect Each copy of the A allele shifted the measure 0.022 lower (95% confidence interval 0.016-0.028); p = 2 × 10−17.

How common The A allele had a frequency of about 16% in the people studied.

Where it sits Chromosome 3, band 3q26.2 — a missense change in SLC2A2.

What ClinVar records

Classification Benign for Fanconi-Bickel syndrome; criteria provided, multiple submitters, no conflicts (2 of 4 stars, 9 submitters), last evaluated 2026-02-04. ClinVar record 130349 NM_000340.2(SLC2A2):c.329C>T (p.Thr110Ile)

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 Fasting glucose. 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 Fasting glucose. That is a smaller link than two copies.
G/G No copy of the version the research linked to Fasting glucose. This is the starting point the study compared everyone against.
Source

Questions about rs5400

What is rs5400?

rs5400 is a single position in the genome, in or near the SLC2A2 gene. Published research associates it with fasting glucose. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.

Does rs5400 affect how medicines work?

SLC2A2 carries pharmacogenomic findings for Metformin. That is educational information, not a prescription or a dosing guide. Any decision to start, stop or change a medicine belongs with the clinician or pharmacist managing your treatment.

Does having rs5400 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 rs5400 come from?

GWAS Catalog, Wellcome open research 2023, PMID:39280063. 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.

Fasting glucose (rs5400). MyGeneLog™. https://www.mygenelog.com/variants/rs5400

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