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Body fat percentage

TUFM · rs4788099

What the study found

Who was studied Up to 31,457 European ancestry men, up to 35,030 European ancestry women, up to 8,259 Indian Asian ancestry men, up to 1,030 Indian Asian ancestry women, 973 Korean ancestry men, 1,360 Korean ancestry women, 154 African American men, 262 African American women; replicated in Up to 12,480 European ancestry men, up to 10,055 European ancestry women, 315 Jamaican ancestry men, 774 Jamaican ancestry women.

The effect Each copy of the G allele shifted the measure 0.032 body fat % higher (95% confidence interval 0.019-0.045); p = 7 × 10−7.

How common The G allele had a frequency of about 38% in the people studied.

Where it sits Chromosome 16, band 16p11.2 — in an intron of TUFM.

What ClinVar records

Classification Benign for Combined oxidative phosphorylation defect type 4; criteria provided, multiple submitters, no conflicts (2 of 4 stars, 6 submitters), last evaluated 2026-02-03. ClinVar record 318747 NM_003321.5(TUFM):c.817+13T>C

What this is ClinVar's aggregate record for this position (as of its 2026-10-19 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 No copy of the version the research linked to Body fat percentage. This is the starting point the study compared everyone against.
A/G One copy of the version the research linked to Body fat percentage. That is a smaller link than two copies.
G/G Two copies of the version the research linked to Body fat percentage. That is the strongest link of the three results. A link in a study is not a diagnosis.
Source

What people read about alongside this

Papers in Europe PMC whose title or abstract names both this rsID and that subject. A shared paper means somebody wrote about the two together — it is not a claim that this position explains the subject.

Questions about rs4788099

What is rs4788099?

rs4788099 is a single position in the genome, in or near the TUFM gene. Published research associates it with body fat percentage. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.

What do people read about alongside rs4788099?

Subjects that appear in the title or abstract of the same papers as this rsID include blood sugar and insulin (1 papers). A shared paper means somebody wrote about the two together; it is not a claim that this position explains the topic.

Does having rs4788099 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 rs4788099 come from?

GWAS Catalog, Nat Commun 2016, PMID:26833246. 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.

Body fat percentage (rs4788099). MyGeneLog™. https://www.mygenelog.com/variants/rs4788099

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